80892638 has 4 divisors (see below), whose sum is σ = 121338960. Its totient is φ = 40446318.

The previous prime is 80892611. The next prime is 80892641. The reversal of 80892638 is 83629808.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20223158 + ... + 20223161.

It is an arithmetic number, because the mean of its divisors is an integer number (30334740).

Almost surely, 2^80892638 is an apocalyptic number.

80892638 is a deficient number, since it is larger than the sum of its proper divisors (40446322).

80892638 is a wasteful number, since it uses less digits than its factorization.

80892638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40446321.

The product of its (nonzero) digits is 165888, while the sum is 44.

The square root of 80892638 is about 8994.0334666934. The cubic root of 80892638 is about 432.4836226215.

The spelling of 80892638 in words is "eighty million, eight hundred ninety-two thousand, six hundred thirty-eight".