891056734 has 8 divisors (see below), whose sum is σ = 1415207808. Its totient is φ = 419320800.

The previous prime is 891056693. The next prime is 891056743. The reversal of 891056734 is 437650198.

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

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, 13103742 + ... + 13103809.

It is an arithmetic number, because the mean of its divisors is an integer number (176900976).

Almost surely, 2^891056734 is an apocalyptic number.

891056734 is a deficient number, since it is larger than the sum of its proper divisors (524151074).

891056734 is a wasteful number, since it uses less digits than its factorization.

891056734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26207570.

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 891056734 is about 29850.5734283280. The cubic root of 891056734 is about 962.2807223871.

The spelling of 891056734 in words is "eight hundred ninety-one million, fifty-six thousand, seven hundred thirty-four".