386445747 has 16 divisors (see below), whose sum is σ = 539631360. Its totient is φ = 245527392.

The previous prime is 386445739. The next prime is 386445791. The reversal of 386445747 is 747544683.

It is a happy number.

It is not a de Polignac number, because 386445747 - 2³ = 386445739 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 386445696 and 386445705.

It is not an unprimeable number, because it can be changed into a prime (386445707) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9004 + ... + 29222.

It is an arithmetic number, because the mean of its divisors is an integer number (33726960).

Almost surely, 2^386445747 is an apocalyptic number.

386445747 is a deficient number, since it is larger than the sum of its proper divisors (153185613).

386445747 is a wasteful number, since it uses less digits than its factorization.

386445747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20522.

The product of its digits is 2257920, while the sum is 48.

The square root of 386445747 is about 19658.2233937861. The cubic root of 386445747 is about 728.3881035264.

The spelling of 386445747 in words is "three hundred eighty-six million, four hundred forty-five thousand, seven hundred forty-seven".