14920857 has 24 divisors (see below), whose sum is σ = 24799424. Its totient is φ = 8468064.

The previous prime is 14920853. The next prime is 14920861. The reversal of 14920857 is 75802941.

It is an interprime number because it is at equal distance from previous prime (14920853) and next prime (14920861).

It is not a de Polignac number, because 14920857 - 2² = 14920853 is a prime.

It is a super-2 number, since 2×14920857² = 445263947228898, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14920853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9543 + ... + 10995.

Almost surely, 2^14920857 is an apocalyptic number.

It is an amenable number.

14920857 is a deficient number, since it is larger than the sum of its proper divisors (9878567).

14920857 is a wasteful number, since it uses less digits than its factorization.

14920857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1629 (or 1626 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 14920857 is about 3862.7525160176. The cubic root of 14920857 is about 246.1867014162.

The spelling of 14920857 in words is "fourteen million, nine hundred twenty thousand, eight hundred fifty-seven".