390316873 has 4 divisors (see below), whose sum is σ = 392166928. Its totient is φ = 388466820.

The previous prime is 390316853. The next prime is 390316897. The reversal of 390316873 is 378613093.

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, and also an emirpimes, since its reverse is a distinct semiprime: 378613093 = 1811 ⋅209063.

It is a cyclic number.

It is not a de Polignac number, because 390316873 - 2²¹ = 388219721 is a prime.

It is a super-2 number, since 2×390316873² = 304694522696996258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (390316813) 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, 924711 + ... + 925132.

It is an arithmetic number, because the mean of its divisors is an integer number (98041732).

Almost surely, 2^390316873 is an apocalyptic number.

It is an amenable number.

390316873 is a deficient number, since it is larger than the sum of its proper divisors (1850055).

390316873 is a wasteful number, since it uses less digits than its factorization.

390316873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1850054.

The product of its (nonzero) digits is 81648, while the sum is 40.

The square root of 390316873 is about 19756.4387732202. The cubic root of 390316873 is about 730.8121773129.

The spelling of 390316873 in words is "three hundred ninety million, three hundred sixteen thousand, eight hundred seventy-three".