696390990 has 16 divisors (see below), whose sum is σ = 1671338448. Its totient is φ = 185704256.

The previous prime is 696390971. The next prime is 696390991. The reversal of 696390990 is 99093696.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (696390991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11606487 + ... + 11606546.

It is an arithmetic number, because the mean of its divisors is an integer number (104458653).

Almost surely, 2^696390990 is an apocalyptic number.

696390990 is an abundant number, since it is smaller than the sum of its proper divisors (974947458).

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

696390990 is a wasteful number, since it uses less digits than its factorization.

696390990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23213043.

The product of its (nonzero) digits is 708588, while the sum is 51.

The square root of 696390990 is about 26389.2210949850. The cubic root of 696390990 is about 886.3754411003.

The spelling of 696390990 in words is "six hundred ninety-six million, three hundred ninety thousand, nine hundred ninety".