916431901 has 16 divisors (see below), whose sum is σ = 1144995840. Its totient is φ = 712583280.

The previous prime is 916431863. The next prime is 916431949. The reversal of 916431901 is 109134619.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 916431901 - 2¹⁷ = 916300829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (916431961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24460 + ... + 49306.

It is an arithmetic number, because the mean of its divisors is an integer number (71562240).

Almost surely, 2^916431901 is an apocalyptic number.

It is an amenable number.

916431901 is a deficient number, since it is larger than the sum of its proper divisors (228563939).

916431901 is a wasteful number, since it uses less digits than its factorization.

916431901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25344.

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 916431901 is about 30272.6262653243. The cubic root of 916431901 is about 971.3298445999.

The spelling of 916431901 in words is "nine hundred sixteen million, four hundred thirty-one thousand, nine hundred one".