690687360 has 288 divisors, whose sum is σ = 2624207040. Its totient is φ = 167270400.

The previous prime is 690687343. The next prime is 690687367. The reversal of 690687360 is 63786096.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690687367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 696465 + ... + 697455.

It is an arithmetic number, because the mean of its divisors is an integer number (9111830).

Almost surely, 2^690687360 is an apocalyptic number.

690687360 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 690687360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1312103520).

690687360 is an abundant number, since it is smaller than the sum of its proper divisors (1933519680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

690687360 is a wasteful number, since it uses less digits than its factorization.

690687360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1038 (or 1012 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The square root of 690687360 is about 26280.9314903411. The cubic root of 690687360 is about 883.9489197432.

The spelling of 690687360 in words is "six hundred ninety million, six hundred eighty-seven thousand, three hundred sixty".