386997449 has 4 divisors (see below), whose sum is σ = 389951760. Its totient is φ = 384043140.

The previous prime is 386997437. The next prime is 386997451. The reversal of 386997449 is 944799683.

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 not a de Polignac number, because 386997449 - 2²⁰ = 385948873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (386997409) 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, 1476959 + ... + 1477220.

It is an arithmetic number, because the mean of its divisors is an integer number (97487940).

Almost surely, 2^386997449 is an apocalyptic number.

It is an amenable number.

386997449 is a deficient number, since it is larger than the sum of its proper divisors (2954311).

386997449 is a wasteful number, since it uses less digits than its factorization.

386997449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2954310.

The product of its digits is 11757312, while the sum is 59.

The square root of 386997449 is about 19672.2507354903. The cubic root of 386997449 is about 728.7345618977.

The spelling of 386997449 in words is "three hundred eighty-six million, nine hundred ninety-seven thousand, four hundred forty-nine".