14920657 has 4 divisors (see below), whose sum is σ = 15323956. Its totient is φ = 14517360.

The previous prime is 14920639. The next prime is 14920663. The reversal of 14920657 is 75602941.

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 14470416 + 450241 = 3804^2 + 671^2 .

It is a cyclic number.

It is not a de Polignac number, because 14920657 - 2²³ = 6532049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14920627) 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, 201594 + ... + 201667.

It is an arithmetic number, because the mean of its divisors is an integer number (3830989).

Almost surely, 2^14920657 is an apocalyptic number.

It is an amenable number.

14920657 is a deficient number, since it is larger than the sum of its proper divisors (403299).

14920657 is an equidigital number, since it uses as much as digits as its factorization.

14920657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403298.

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

The square root of 14920657 is about 3862.7266276557. The cubic root of 14920657 is about 246.1856014446.

The spelling of 14920657 in words is "fourteen million, nine hundred twenty thousand, six hundred fifty-seven".