916908473 has 4 divisors (see below), whose sum is σ = 987439908. Its totient is φ = 846377040.

The previous prime is 916908389. The next prime is 916908493. The reversal of 916908473 is 374809619.

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

It can be written as a sum of positive squares in 2 ways, for example, as 82391929 + 834516544 = 9077^2 + 28888^2 .

It is a cyclic number.

It is not a de Polignac number, because 916908473 - 2¹⁰ = 916907449 is a prime.

It is a super-2 number, since 2×916908473² = 1681442295718383458, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (916908493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35265698 + ... + 35265723.

It is an arithmetic number, because the mean of its divisors is an integer number (246859977).

Almost surely, 2^916908473 is an apocalyptic number.

It is an amenable number.

916908473 is a deficient number, since it is larger than the sum of its proper divisors (70531435).

916908473 is a wasteful number, since it uses less digits than its factorization.

916908473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70531434.

The product of its (nonzero) digits is 326592, while the sum is 47.

The square root of 916908473 is about 30280.4965778304. The cubic root of 916908473 is about 971.4981889461.

The spelling of 916908473 in words is "nine hundred sixteen million, nine hundred eight thousand, four hundred seventy-three".