1623331964 has 12 divisors (see below), whose sum is σ = 2845827600. Its totient is φ = 810238368.

The previous prime is 1623331961. The next prime is 1623331967. The reversal of 1623331964 is 4691333261.

It is an interprime number because it is at equal distance from previous prime (1623331961) and next prime (1623331967).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1623331961) 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, 354344 + ... + 358895.

It is an arithmetic number, because the mean of its divisors is an integer number (237152300).

Almost surely, 2^1623331964 is an apocalyptic number.

It is an amenable number.

1623331964 is a deficient number, since it is larger than the sum of its proper divisors (1222495636).

1623331964 is a wasteful number, since it uses less digits than its factorization.

1623331964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713812 (or 713810 counting only the distinct ones).

The product of its digits is 69984, while the sum is 38.

The square root of 1623331964 is about 40290.5939891682. The cubic root of 1623331964 is about 1175.2649383560.

The spelling of 1623331964 in words is "one billion, six hundred twenty-three million, three hundred thirty-one thousand, nine hundred sixty-four".