916424257 has 4 divisors (see below), whose sum is σ = 1047342016. Its totient is φ = 785506500.

The previous prime is 916424231. The next prime is 916424279. The reversal of 916424257 is 752424619.

916424257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 916424257 - 2¹⁹ = 915899969 is a prime.

It is the 30273-rd Hogben number.

It is not an unprimeable number, because it can be changed into a prime (916424297) by changing a digit.

It is a nontrivial repunit in base 30272.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65458869 + ... + 65458882.

It is an arithmetic number, because the mean of its divisors is an integer number (261835504).

Almost surely, 2^916424257 is an apocalyptic number.

It is an amenable number.

916424257 is a deficient number, since it is larger than the sum of its proper divisors (130917759).

916424257 is a wasteful number, since it uses less digits than its factorization.

916424257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130917758.

The product of its digits is 120960, while the sum is 40.

The square root of 916424257 is about 30272.5000123875. The cubic root of 916424257 is about 971.3271439569.

The spelling of 916424257 in words is "nine hundred sixteen million, four hundred twenty-four thousand, two hundred fifty-seven".