384869731 has 8 divisors (see below), whose sum is σ = 389577600. Its totient is φ = 380170560.

The previous prime is 384869707. The next prime is 384869773. The reversal of 384869731 is 137968483.

It is a happy number.

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 384869731 - 2¹⁷ = 384738659 is a prime.

It is a super-2 number, since 2×384869731² = 296249419680024722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (384869231) 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, 147246 + ... + 149836.

It is an arithmetic number, because the mean of its divisors is an integer number (48697200).

Almost surely, 2^384869731 is an apocalyptic number.

384869731 is a deficient number, since it is larger than the sum of its proper divisors (4707869).

384869731 is a wasteful number, since it uses less digits than its factorization.

384869731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4349.

The product of its digits is 870912, while the sum is 49.

The square root of 384869731 is about 19618.0970279994. The cubic root of 384869731 is about 727.3965754810.

The spelling of 384869731 in words is "three hundred eighty-four million, eight hundred sixty-nine thousand, seven hundred thirty-one".