623499697 has 4 divisors (see below), whose sum is σ = 636765696. Its totient is φ = 610233700.

The previous prime is 623499689. The next prime is 623499731. The reversal of 623499697 is 796994326.

623499697 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 623499697 - 2³ = 623499689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (623499647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6632929 + ... + 6633022.

It is an arithmetic number, because the mean of its divisors is an integer number (159191424).

Almost surely, 2^623499697 is an apocalyptic number.

It is an amenable number.

623499697 is a deficient number, since it is larger than the sum of its proper divisors (13265999).

623499697 is a wasteful number, since it uses less digits than its factorization.

623499697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13265998.

The product of its digits is 4408992, while the sum is 55.

The square root of 623499697 is about 24969.9759110817. The cubic root of 623499697 is about 854.3032966490.

The spelling of 623499697 in words is "six hundred twenty-three million, four hundred ninety-nine thousand, six hundred ninety-seven".