623535464 has 32 divisors (see below), whose sum is σ = 1256860800. Its totient is φ = 289071360.

The previous prime is 623535461. The next prime is 623535487. The reversal of 623535464 is 464535326.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is not an unprimeable number, because it can be changed into a prime (623535461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36497 + ... + 50784.

It is an arithmetic number, because the mean of its divisors is an integer number (39276900).

Almost surely, 2^623535464 is an apocalyptic number.

It is an amenable number.

623535464 is an abundant number, since it is smaller than the sum of its proper divisors (633325336).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

623535464 is a wasteful number, since it uses less digits than its factorization.

623535464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87353 (or 87349 counting only the distinct ones).

The product of its digits is 259200, while the sum is 38.

The square root of 623535464 is about 24970.6921009411. The cubic root of 623535464 is about 854.3196320121.

The spelling of 623535464 in words is "six hundred twenty-three million, five hundred thirty-five thousand, four hundred sixty-four".