623461679 has 2 divisors, whose sum is σ = 623461680. Its totient is φ = 623461678.

The previous prime is 623461639. The next prime is 623461693. The reversal of 623461679 is 976164326.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 623461679 - 2²⁸ = 355026223 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (623461609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311730839 + 311730840.

It is an arithmetic number, because the mean of its divisors is an integer number (311730840).

Almost surely, 2^623461679 is an apocalyptic number.

623461679 is a deficient number, since it is larger than the sum of its proper divisors (1).

623461679 is an equidigital number, since it uses as much as digits as its factorization.

623461679 is an evil number, because the sum of its binary digits is even.

The product of its digits is 326592, while the sum is 44.

The square root of 623461679 is about 24969.2146252140. The cubic root of 623461679 is about 854.2859325332.

The spelling of 623461679 in words is "six hundred twenty-three million, four hundred sixty-one thousand, six hundred seventy-nine".