390917053 has 4 divisors (see below), whose sum is σ = 391297248. Its totient is φ = 390536860.

The previous prime is 390917041. The next prime is 390917063. The reversal of 390917053 is 350719093.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-390917053 is a prime.

It is a super-2 number, since 2×390917053² = 305632284652409618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390917003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188551 + ... + 190612.

It is an arithmetic number, because the mean of its divisors is an integer number (97824312).

Almost surely, 2^390917053 is an apocalyptic number.

It is an amenable number.

390917053 is a deficient number, since it is larger than the sum of its proper divisors (380195).

390917053 is a wasteful number, since it uses less digits than its factorization.

390917053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380194.

The product of its (nonzero) digits is 25515, while the sum is 37.

The square root of 390917053 is about 19771.6224169895. The cubic root of 390917053 is about 731.1865690420.

The spelling of 390917053 in words is "three hundred ninety million, nine hundred seventeen thousand, fifty-three".