667339397 has 8 divisors (see below), whose sum is σ = 670980480. Its totient is φ = 663707520.

The previous prime is 667339391. The next prime is 667339423. The reversal of 667339397 is 793933766.

667339397 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 667339397 - 2¹² = 667335301 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 (667339391) 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, 180554 + ... + 184212.

It is an arithmetic number, because the mean of its divisors is an integer number (83872560).

Almost surely, 2^667339397 is an apocalyptic number.

It is an amenable number.

667339397 is a deficient number, since it is larger than the sum of its proper divisors (3641083).

667339397 is a wasteful number, since it uses less digits than its factorization.

667339397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4603.

The product of its digits is 3857868, while the sum is 53.

The square root of 667339397 is about 25832.9130567964. The cubic root of 667339397 is about 873.8742079921.

The spelling of 667339397 in words is "six hundred sixty-seven million, three hundred thirty-nine thousand, three hundred ninety-seven".