20963427 has 8 divisors (see below), whose sum is σ = 27980880. Its totient is φ = 13960800.

The previous prime is 20963417. The next prime is 20963473. The reversal of 20963427 is 72436902.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20963427 - 2⁸ = 20963171 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20963417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177 + ... + 6477.

It is an arithmetic number, because the mean of its divisors is an integer number (3497610).

Almost surely, 2^20963427 is an apocalyptic number.

20963427 is a deficient number, since it is larger than the sum of its proper divisors (7017453).

20963427 is a wasteful number, since it uses less digits than its factorization.

20963427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7413.

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 20963427 is about 4578.5835145818. The cubic root of 20963427 is about 275.7321624528.

It can be divided in two parts, 209 and 63427, that added together give a palindrome (63636).

The spelling of 20963427 in words is "twenty million, nine hundred sixty-three thousand, four hundred twenty-seven".