320696377 has 4 divisors (see below), whose sum is σ = 320896080. Its totient is φ = 320496676.

The previous prime is 320696351. The next prime is 320696393. The reversal of 320696377 is 773696023.

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 320696377 - 2⁷ = 320696249 is a prime.

It is a super-2 number, since 2×320696377² = 205692332441852258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320696317) 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, 97423 + ... + 100660.

It is an arithmetic number, because the mean of its divisors is an integer number (80224020).

Almost surely, 2^320696377 is an apocalyptic number.

It is an amenable number.

320696377 is a deficient number, since it is larger than the sum of its proper divisors (199703).

320696377 is a wasteful number, since it uses less digits than its factorization.

320696377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199702.

The product of its (nonzero) digits is 285768, while the sum is 43.

The square root of 320696377 is about 17907.9975709179. The cubic root of 320696377 is about 684.4861808264.

The spelling of 320696377 in words is "three hundred twenty million, six hundred ninety-six thousand, three hundred seventy-seven".