1623608117 has 2 divisors, whose sum is σ = 1623608118. Its totient is φ = 1623608116.

The previous prime is 1623608059. The next prime is 1623608131. The reversal of 1623608117 is 7118063261.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1623606436 + 1681 = 40294^2 + 41^2 .

It is a cyclic number.

It is not a de Polignac number, because 1623608117 - 2⁸ = 1623607861 is a prime.

It is a super-2 number, since 2×1623608117² = 5272206635176571378, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1623608017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 811804058 + 811804059.

It is an arithmetic number, because the mean of its divisors is an integer number (811804059).

Almost surely, 2^1623608117 is an apocalyptic number.

It is an amenable number.

1623608117 is a deficient number, since it is larger than the sum of its proper divisors (1).

1623608117 is an equidigital number, since it uses as much as digits as its factorization.

1623608117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 1623608117 is about 40294.0208591796. The cubic root of 1623608117 is about 1175.3315779475.

The spelling of 1623608117 in words is "one billion, six hundred twenty-three million, six hundred eight thousand, one hundred seventeen".