386770465 has 4 divisors (see below), whose sum is σ = 464124564. Its totient is φ = 309416368.

The previous prime is 386770457. The next prime is 386770469. The reversal of 386770465 is 564077683.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 564077683 = 13 ⋅43390591.

It can be written as a sum of positive squares in 2 ways, for example, as 44076321 + 342694144 = 6639^2 + 18512^2 .

It is a cyclic number.

It is not a de Polignac number, because 386770465 - 2³ = 386770457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (386770469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38677042 + ... + 38677051.

It is an arithmetic number, because the mean of its divisors is an integer number (116031141).

Almost surely, 2^386770465 is an apocalyptic number.

It is an amenable number.

386770465 is a deficient number, since it is larger than the sum of its proper divisors (77354099).

386770465 is an equidigital number, since it uses as much as digits as its factorization.

386770465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77354098.

The product of its (nonzero) digits is 846720, while the sum is 46.

The square root of 386770465 is about 19666.4807477088. The cubic root of 386770465 is about 728.5920601525.

The spelling of 386770465 in words is "three hundred eighty-six million, seven hundred seventy thousand, four hundred sixty-five".