390693692 has 6 divisors (see below), whose sum is σ = 683713968. Its totient is φ = 195346844.

The previous prime is 390693671. The next prime is 390693727. The reversal of 390693692 is 296396093.

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, 48836708 + ... + 48836715.

It is an arithmetic number, because the mean of its divisors is an integer number (113952328).

Almost surely, 2^390693692 is an apocalyptic number.

It is an amenable number.

390693692 is a deficient number, since it is larger than the sum of its proper divisors (293020276).

390693692 is a wasteful number, since it uses less digits than its factorization.

390693692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97673427 (or 97673425 counting only the distinct ones).

The product of its (nonzero) digits is 472392, while the sum is 47.

The square root of 390693692 is about 19765.9730850773. The cubic root of 390693692 is about 731.0472814554.

The spelling of 390693692 in words is "three hundred ninety million, six hundred ninety-three thousand, six hundred ninety-two".