20657483 has 24 divisors (see below), whose sum is σ = 26876640. Its totient is φ = 15541680.

The previous prime is 20657477. The next prime is 20657489. The reversal of 20657483 is 38475602.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20657477) and next prime (20657489).

It is not a de Polignac number, because 20657483 - 2⁶ = 20657419 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20657489) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 712313 + ... + 712341.

It is an arithmetic number, because the mean of its divisors is an integer number (1119860).

Almost surely, 2^20657483 is an apocalyptic number.

20657483 is a deficient number, since it is larger than the sum of its proper divisors (6219157).

20657483 is an frugal number, since it uses more digits than its factorization.

20657483 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116 (or 47 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 20657483 is about 4545.0503847592. The cubic root of 20657483 is about 274.3842221844.

The spelling of 20657483 in words is "twenty million, six hundred fifty-seven thousand, four hundred eighty-three".