816089934 has 16 divisors (see below), whose sum is σ = 1780560000. Its totient is φ = 247299960.

The previous prime is 816089927. The next prime is 816089951. The reversal of 816089934 is 439980618.

It is a super-2 number, since 2×816089934² = 1332005560752248712, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6182434 + ... + 6182565.

It is an arithmetic number, because the mean of its divisors is an integer number (111285000).

Almost surely, 2^816089934 is an apocalyptic number.

816089934 is an abundant number, since it is smaller than the sum of its proper divisors (964470066).

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

816089934 is a wasteful number, since it uses less digits than its factorization.

816089934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12365015.

The product of its (nonzero) digits is 373248, while the sum is 48.

The square root of 816089934 is about 28567.2878306639. The cubic root of 816089934 is about 934.5000745743.

The spelling of 816089934 in words is "eight hundred sixteen million, eighty-nine thousand, nine hundred thirty-four".