396172277 has 8 divisors (see below), whose sum is σ = 410147040. Its totient is φ = 382218480.

The previous prime is 396172243. The next prime is 396172279. The reversal of 396172277 is 772271693.

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 396172277 - 2¹² = 396168181 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 (396172279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39938 + ... + 48860.

It is an arithmetic number, because the mean of its divisors is an integer number (51268380).

Almost surely, 2^396172277 is an apocalyptic number.

It is an amenable number.

396172277 is a deficient number, since it is larger than the sum of its proper divisors (13974763).

396172277 is a wasteful number, since it uses less digits than its factorization.

396172277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10483.

The product of its digits is 222264, while the sum is 44.

The square root of 396172277 is about 19904.0768939431. The cubic root of 396172277 is about 734.4485208711.

The spelling of 396172277 in words is "three hundred ninety-six million, one hundred seventy-two thousand, two hundred seventy-seven".