623642117 has 8 divisors (see below), whose sum is σ = 719395776. Its totient is φ = 529553952.

The previous prime is 623642081. The next prime is 623642143. The reversal of 623642117 is 711246326.

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

It is a cyclic number.

It is not a de Polignac number, because 623642117 - 2¹² = 623638021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623642317) 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, 415568 + ... + 417065.

It is an arithmetic number, because the mean of its divisors is an integer number (89924472).

Almost surely, 2^623642117 is an apocalyptic number.

It is an amenable number.

623642117 is a deficient number, since it is larger than the sum of its proper divisors (95753659).

623642117 is a wasteful number, since it uses less digits than its factorization.

623642117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 832747.

The product of its digits is 12096, while the sum is 32.

The square root of 623642117 is about 24972.8275731844. The cubic root of 623642117 is about 854.3683384410.

The spelling of 623642117 in words is "six hundred twenty-three million, six hundred forty-two thousand, one hundred seventeen".