390860963 has 4 divisors (see below), whose sum is σ = 391126008. Its totient is φ = 390595920.

The previous prime is 390860909. The next prime is 390860969. The reversal of 390860963 is 369068093.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 390860963 - 2⁸ = 390860707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (390860969) 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, 130298 + ... + 133263.

It is an arithmetic number, because the mean of its divisors is an integer number (97781502).

Almost surely, 2^390860963 is an apocalyptic number.

390860963 is a deficient number, since it is larger than the sum of its proper divisors (265045).

390860963 is a wasteful number, since it uses less digits than its factorization.

390860963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265044.

The product of its (nonzero) digits is 209952, while the sum is 44.

The square root of 390860963 is about 19770.2039190293. The cubic root of 390860963 is about 731.1515963916.

The spelling of 390860963 in words is "three hundred ninety million, eight hundred sixty thousand, nine hundred sixty-three".