16313857 has 4 divisors (see below), whose sum is σ = 18644416. Its totient is φ = 13983300.

The previous prime is 16313851. The next prime is 16313867. The reversal of 16313857 is 75831361.

16313857 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 16313857 - 2³ = 16313849 is a prime.

It is a super-2 number, since 2×16313857² = 532283860432898, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16313851) 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, 1165269 + ... + 1165282.

It is an arithmetic number, because the mean of its divisors is an integer number (4661104).

Almost surely, 2^16313857 is an apocalyptic number.

It is an amenable number.

16313857 is a deficient number, since it is larger than the sum of its proper divisors (2330559).

16313857 is an equidigital number, since it uses as much as digits as its factorization.

16313857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2330558.

The product of its digits is 15120, while the sum is 34.

The square root of 16313857 is about 4039.0415942399. The cubic root of 16313857 is about 253.6211984340.

The spelling of 16313857 in words is "sixteen million, three hundred thirteen thousand, eight hundred fifty-seven".