90682690 has 32 divisors (see below), whose sum is σ = 186906240. Its totient is φ = 31031424.

The previous prime is 90682651. The next prime is 90682703. The reversal of 90682690 is 9628609.

It is a happy number.

It is a super-2 number, since 2×90682690² = 16446700531272200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50854 + ... + 52606.

It is an arithmetic number, because the mean of its divisors is an integer number (5840820).

Almost surely, 2^90682690 is an apocalyptic number.

90682690 is an abundant number, since it is smaller than the sum of its proper divisors (96223550).

90682690 is a wasteful number, since it uses less digits than its factorization.

90682690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2506.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 90682690 is about 9522.7459275148. The cubic root of 90682690 is about 449.2707365000.

The spelling of 90682690 in words is "ninety million, six hundred eighty-two thousand, six hundred ninety".