623807956 has 6 divisors (see below), whose sum is σ = 1091663930. Its totient is φ = 311903976.

The previous prime is 623807929. The next prime is 623807963. The reversal of 623807956 is 659708326.

623807956 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 470890000 + 152917956 = 21700^2 + 12366^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77975991 + ... + 77975998.

Almost surely, 2^623807956 is an apocalyptic number.

It is an amenable number.

623807956 is a deficient number, since it is larger than the sum of its proper divisors (467855974).

623807956 is a wasteful number, since it uses less digits than its factorization.

623807956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155951993 (or 155951991 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 46.

The square root of 623807956 is about 24976.1477413952. The cubic root of 623807956 is about 854.4440629790. Note that the first 3 decimals are identical.

The spelling of 623807956 in words is "six hundred twenty-three million, eight hundred seven thousand, nine hundred fifty-six".