386972669 has 8 divisors (see below), whose sum is σ = 391000608. Its totient is φ = 382952560.

The previous prime is 386972647. The next prime is 386972701. The reversal of 386972669 is 966279683.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 386972669 - 2⁸ = 386972413 is a prime.

It is a super-2 number, since 2×386972669² = 299495693105967122, 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 (386972869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192779 + ... + 194775.

It is an arithmetic number, because the mean of its divisors is an integer number (48875076).

Almost surely, 2^386972669 is an apocalyptic number.

It is an amenable number.

386972669 is a deficient number, since it is larger than the sum of its proper divisors (4027939).

386972669 is a wasteful number, since it uses less digits than its factorization.

386972669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3915.

The product of its digits is 5878656, while the sum is 56.

The square root of 386972669 is about 19671.6209042366. The cubic root of 386972669 is about 728.7190075937.

The spelling of 386972669 in words is "three hundred eighty-six million, nine hundred seventy-two thousand, six hundred sixty-nine".