386947874 has 4 divisors (see below), whose sum is σ = 580421814. Its totient is φ = 193473936.

The previous prime is 386947871. The next prime is 386947903. The reversal of 386947874 is 478749683.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 478749683 = 263 ⋅1820341.

It can be written as a sum of positive squares in only one way, i.e., 386319025 + 628849 = 19655^2 + 793^2 .

It is not an unprimeable number, because it can be changed into a prime (386947871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96736967 + ... + 96736970.

Almost surely, 2^386947874 is an apocalyptic number.

386947874 is a deficient number, since it is larger than the sum of its proper divisors (193473940).

386947874 is a wasteful number, since it uses less digits than its factorization.

386947874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193473939.

The product of its digits is 8128512, while the sum is 56.

The square root of 386947874 is about 19670.9906715447. The cubic root of 386947874 is about 728.7034432096.

The spelling of 386947874 in words is "three hundred eighty-six million, nine hundred forty-seven thousand, eight hundred seventy-four".