386449697 has 4 divisors (see below), whose sum is σ = 389492736. Its totient is φ = 383406660.

The previous prime is 386449673. The next prime is 386449709. The reversal of 386449697 is 796944683.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-386449697 is a prime.

It is a super-2 number, since 2×386449697² = 298686736622783618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (386449097) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1521329 + ... + 1521582.

It is an arithmetic number, because the mean of its divisors is an integer number (97373184).

Almost surely, 2^386449697 is an apocalyptic number.

It is an amenable number.

386449697 is a deficient number, since it is larger than the sum of its proper divisors (3043039).

386449697 is a wasteful number, since it uses less digits than its factorization.

386449697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3043038.

The product of its digits is 7838208, while the sum is 56.

The square root of 386449697 is about 19658.3238603905. The cubic root of 386449697 is about 728.3905852229.

The spelling of 386449697 in words is "three hundred eighty-six million, four hundred forty-nine thousand, six hundred ninety-seven".