22613863 has 2 divisors, whose sum is σ = 22613864. Its totient is φ = 22613862.

The previous prime is 22613813. The next prime is 22613869. The reversal of 22613863 is 36831622.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22613863 is a prime.

It is a super-2 number, since 2×22613863² = 1022773599565538, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22613869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11306931 + 11306932.

It is an arithmetic number, because the mean of its divisors is an integer number (11306932).

Almost surely, 2^22613863 is an apocalyptic number.

22613863 is a deficient number, since it is larger than the sum of its proper divisors (1).

22613863 is an equidigital number, since it uses as much as digits as its factorization.

22613863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 31.

The square root of 22613863 is about 4755.4035580590. The cubic root of 22613863 is about 282.7862262030.

The spelling of 22613863 in words is "twenty-two million, six hundred thirteen thousand, eight hundred sixty-three".