68892090 has 32 divisors (see below), whose sum is σ = 165559680. Its totient is φ = 18346944.

The previous prime is 68892073. The next prime is 68892097. The reversal of 68892090 is 9029886.

It is a super-2 number, since 2×68892090² = 9492240129136200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68892097) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42067 + ... + 43673.

It is an arithmetic number, because the mean of its divisors is an integer number (5173740).

Almost surely, 2^68892090 is an apocalyptic number.

68892090 is an abundant number, since it is smaller than the sum of its proper divisors (96667590).

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

68892090 is a wasteful number, since it uses less digits than its factorization.

68892090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3046.

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 68892090 is about 8300.1259026595. The cubic root of 68892090 is about 409.9426649947.

The spelling of 68892090 in words is "sixty-eight million, eight hundred ninety-two thousand, ninety".