690322752 has 168 divisors, whose sum is σ = 2272726976. Its totient is φ = 196245504.

The previous prime is 690322747. The next prime is 690322753. The reversal of 690322752 is 257223096.

It is a tau number, because it is divible by the number of its divisors (168).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690322753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1261743 + ... + 1262289.

Almost surely, 2^690322752 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 690322752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1136363488).

690322752 is an abundant number, since it is smaller than the sum of its proper divisors (1582404224).

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

690322752 is a wasteful number, since it uses less digits than its factorization.

690322752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 885 (or 872 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 690322752 is about 26273.9938342080. The cubic root of 690322752 is about 883.7933493191.

The spelling of 690322752 in words is "six hundred ninety million, three hundred twenty-two thousand, seven hundred fifty-two".