386444397 has 8 divisors (see below), whose sum is σ = 527242144. Its totient is φ = 251638128.

The previous prime is 386444389. The next prime is 386444417. The reversal of 386444397 is 793444683.

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

It is not a de Polignac number, because 386444397 - 2³ = 386444389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (386444297) 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, 1497718 + ... + 1497975.

It is an arithmetic number, because the mean of its divisors is an integer number (65905268).

Almost surely, 2^386444397 is an apocalyptic number.

It is an amenable number.

386444397 is a deficient number, since it is larger than the sum of its proper divisors (140797747).

386444397 is a wasteful number, since it uses less digits than its factorization.

386444397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2995739.

The product of its digits is 1741824, while the sum is 48.

The square root of 386444397 is about 19658.1890569808. The cubic root of 386444397 is about 728.3872553477.

The spelling of 386444397 in words is "three hundred eighty-six million, four hundred forty-four thousand, three hundred ninety-seven".