386976916 has 12 divisors (see below), whose sum is σ = 717045588. Its totient is φ = 182106752.

The previous prime is 386976893. The next prime is 386976917. The reversal of 386976916 is 619679683.

It can be written as a sum of positive squares in 2 ways, for example, as 137968516 + 249008400 = 11746^2 + 15780^2 .

It is a super-2 number, since 2×386976916² = 299502267033742112, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (386976917) 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, 2845351 + ... + 2845486.

It is an arithmetic number, because the mean of its divisors is an integer number (59753799).

Almost surely, 2^386976916 is an apocalyptic number.

It is an amenable number.

386976916 is a deficient number, since it is larger than the sum of its proper divisors (330068672).

386976916 is a wasteful number, since it uses less digits than its factorization.

386976916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5690858 (or 5690856 counting only the distinct ones).

The product of its digits is 2939328, while the sum is 55.

The square root of 386976916 is about 19671.7288513237. The cubic root of 386976916 is about 728.7216734653.

The spelling of 386976916 in words is "three hundred eighty-six million, nine hundred seventy-six thousand, nine hundred sixteen".