90802690 has 16 divisors (see below), whose sum is σ = 178303680. Its totient is φ = 33019120.

The previous prime is 90802687. The next prime is 90802717. The reversal of 90802690 is 9620809.

It is a super-2 number, since 2×90802690² = 16490257022472200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 412630 + ... + 412849.

It is an arithmetic number, because the mean of its divisors is an integer number (11143980).

Almost surely, 2^90802690 is an apocalyptic number.

90802690 is a deficient number, since it is larger than the sum of its proper divisors (87500990).

90802690 is a wasteful number, since it uses less digits than its factorization.

90802690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 825497.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 90802690 is about 9529.0445481171. The cubic root of 90802690 is about 449.4688218058.

The spelling of 90802690 in words is "ninety million, eight hundred two thousand, six hundred ninety".