916471857 has 32 divisors (see below), whose sum is σ = 1448685568. Its totient is φ = 504475776.

The previous prime is 916471841. The next prime is 916471861. The reversal of 916471857 is 758174619.

It is not a de Polignac number, because 916471857 - 2⁴ = 916471841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (916471357) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 58968 + ... + 72870.

It is an arithmetic number, because the mean of its divisors is an integer number (45271424).

Almost surely, 2^916471857 is an apocalyptic number.

It is an amenable number.

916471857 is a deficient number, since it is larger than the sum of its proper divisors (532213711).

916471857 is a wasteful number, since it uses less digits than its factorization.

916471857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14029.

The product of its digits is 423360, while the sum is 48.

The square root of 916471857 is about 30273.2861942671. The cubic root of 916471857 is about 971.3439609029.

The spelling of 916471857 in words is "nine hundred sixteen million, four hundred seventy-one thousand, eight hundred fifty-seven".