690359670 has 384 divisors, whose sum is σ = 2465648640. Its totient is φ = 129392640.

The previous prime is 690359639. The next prime is 690359671. The reversal of 690359670 is 76953096.

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 (690359671) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 7117062 + ... + 7117158.

It is an arithmetic number, because the mean of its divisors is an integer number (6420960).

Almost surely, 2^690359670 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 690359670, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1232824320).

690359670 is an abundant number, since it is smaller than the sum of its proper divisors (1775288970).

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

690359670 is a wasteful number, since it uses less digits than its factorization.

690359670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220 (or 217 counting only the distinct ones).

The product of its (nonzero) digits is 306180, while the sum is 45.

The square root of 690359670 is about 26274.6963826416. The cubic root of 690359670 is about 883.8091039310.

The spelling of 690359670 in words is "six hundred ninety million, three hundred fifty-nine thousand, six hundred seventy".