396772315 has 4 divisors (see below), whose sum is σ = 476126784. Its totient is φ = 317417848.

The previous prime is 396772291. The next prime is 396772331. The reversal of 396772315 is 513277693.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 513277693 = 293 ⋅1751801.

It is a cyclic number.

It is not a de Polignac number, because 396772315 - 2⁵ = 396772283 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39677227 + ... + 39677236.

It is an arithmetic number, because the mean of its divisors is an integer number (119031696).

Almost surely, 2^396772315 is an apocalyptic number.

396772315 is a deficient number, since it is larger than the sum of its proper divisors (79354469).

396772315 is an equidigital number, since it uses as much as digits as its factorization.

396772315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79354468.

The product of its digits is 238140, while the sum is 43.

The square root of 396772315 is about 19919.1444344379. The cubic root of 396772315 is about 734.8191296042.

The spelling of 396772315 in words is "three hundred ninety-six million, seven hundred seventy-two thousand, three hundred fifteen".