90910002 has 8 divisors (see below), whose sum is σ = 181820016. Its totient is φ = 30303332.

The previous prime is 90909991. The next prime is 90910009. The reversal of 90910002 is 20001909.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

90910002 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (90910009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7575828 + ... + 7575839.

It is an arithmetic number, because the mean of its divisors is an integer number (22727502).

Almost surely, 2^90910002 is an apocalyptic number.

90910002 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

90910002 is a wasteful number, since it uses less digits than its factorization.

90910002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15151672.

The product of its (nonzero) digits is 162, while the sum is 21.

The square root of 90910002 is about 9534.6736703466. The cubic root of 90910002 is about 449.6458151294.

The spelling of 90910002 in words is "ninety million, nine hundred ten thousand, two".