20412963 has 12 divisors (see below), whose sum is σ = 29527680. Its totient is φ = 13589136.

The previous prime is 20412949. The next prime is 20412967. The reversal of 20412963 is 36921402.

It is not a de Polignac number, because 20412963 - 2¹³ = 20404771 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (20412967) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7998 + ... + 10236.

It is an arithmetic number, because the mean of its divisors is an integer number (2460640).

Almost surely, 2^20412963 is an apocalyptic number.

20412963 is a deficient number, since it is larger than the sum of its proper divisors (9114717).

20412963 is a wasteful number, since it uses less digits than its factorization.

20412963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3258 (or 3255 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 20412963 is about 4518.0707165780. The cubic root of 20412963 is about 273.2973052189.

The spelling of 20412963 in words is "twenty million, four hundred twelve thousand, nine hundred sixty-three".