505697404 has 12 divisors (see below), whose sum is σ = 888262200. Its totient is φ = 251908208.

The previous prime is 505697333. The next prime is 505697411. The reversal of 505697404 is 404796505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 233914 + ... + 236065.

It is an arithmetic number, because the mean of its divisors is an integer number (74021850).

Almost surely, 2^505697404 is an apocalyptic number.

It is an amenable number.

505697404 is a deficient number, since it is larger than the sum of its proper divisors (382564796).

505697404 is a wasteful number, since it uses less digits than its factorization.

505697404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470252 (or 470250 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 40.

The square root of 505697404 is about 22487.7167360317. The cubic root of 505697404 is about 796.7038356948.

The spelling of 505697404 in words is "five hundred five million, six hundred ninety-seven thousand, four hundred four".