396717822 has 12 divisors (see below), whose sum is σ = 859555320. Its totient is φ = 132239268.

The previous prime is 396717821. The next prime is 396717851. The reversal of 396717822 is 228717693.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396717821) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11019922 + ... + 11019957.

It is an arithmetic number, because the mean of its divisors is an integer number (71629610).

Almost surely, 2^396717822 is an apocalyptic number.

396717822 is an abundant number, since it is smaller than the sum of its proper divisors (462837498).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

396717822 is a wasteful number, since it uses less digits than its factorization.

396717822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22039887 (or 22039884 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The square root of 396717822 is about 19917.7765325350. The cubic root of 396717822 is about 734.7854878651.

The spelling of 396717822 in words is "three hundred ninety-six million, seven hundred seventeen thousand, eight hundred twenty-two".