389619674 has 4 divisors (see below), whose sum is σ = 584429514. Its totient is φ = 194809836.

The previous prime is 389619647. The next prime is 389619683. The reversal of 389619674 is 476916983.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 476916983 = 23 ⋅20735521.

It can be written as a sum of positive squares in only one way, i.e., 386397649 + 3222025 = 19657^2 + 1795^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97404917 + ... + 97404920.

Almost surely, 2^389619674 is an apocalyptic number.

389619674 is a deficient number, since it is larger than the sum of its proper divisors (194809840).

389619674 is a wasteful number, since it uses less digits than its factorization.

389619674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194809839.

The product of its digits is 1959552, while the sum is 53.

The square root of 389619674 is about 19738.7860315674. The cubic root of 389619674 is about 730.3767830376.

The spelling of 389619674 in words is "three hundred eighty-nine million, six hundred nineteen thousand, six hundred seventy-four".