392942947 has 8 divisors (see below), whose sum is σ = 416544336. Its totient is φ = 369395712.

The previous prime is 392942909. The next prime is 392942969. The reversal of 392942947 is 749249293.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 392942947 - 2¹⁹ = 392418659 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 392942947.

It is not an unprimeable number, because it can be changed into a prime (392942747) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1923 + ... + 28099.

It is an arithmetic number, because the mean of its divisors is an integer number (52068042).

Almost surely, 2^392942947 is an apocalyptic number.

392942947 is a deficient number, since it is larger than the sum of its proper divisors (23601389).

392942947 is a wasteful number, since it uses less digits than its factorization.

392942947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27077.

The product of its digits is 979776, while the sum is 49.

The square root of 392942947 is about 19822.7885777960. The cubic root of 392942947 is about 732.4474971590.

The spelling of 392942947 in words is "three hundred ninety-two million, nine hundred forty-two thousand, nine hundred forty-seven".