90902648 has 16 divisors (see below), whose sum is σ = 170762280. Its totient is φ = 45366048.

The previous prime is 90902639. The next prime is 90902659. The reversal of 90902648 is 84620909.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6011 + ... + 14762.

Almost surely, 2^90902648 is an apocalyptic number.

It is an amenable number.

90902648 is a deficient number, since it is larger than the sum of its proper divisors (79859632).

90902648 is a wasteful number, since it uses less digits than its factorization.

90902648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21326 (or 21322 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 90902648 is about 9534.2880174662. The cubic root of 90902648 is about 449.6336903744.

The spelling of 90902648 in words is "ninety million, nine hundred two thousand, six hundred forty-eight".