396786952340872 has 8 divisors (see below), whose sum is σ = 743975535639150. Its totient is φ = 198393476170432.

The previous prime is 396786952340743. The next prime is 396786952340879. The reversal of 396786952340872 is 278043259687693.

It can be written as a sum of positive squares in only one way, i.e., 394891853196996 + 1895099143876 = 19871886^2 + 1376626^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-4 number, since 4×396786952340872⁴ (a number of 59 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 396786952340792 and 396786952340801.

It is not an unprimeable number, because it can be changed into a prime (396786952340879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24799184521297 + ... + 24799184521312.

Almost surely, 2^{396786952340872} is an apocalyptic number.

It is an amenable number.

396786952340872 is a deficient number, since it is larger than the sum of its proper divisors (347188583298278).

396786952340872 is a wasteful number, since it uses less digits than its factorization.

396786952340872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49598369042615 (or 49598369042611 counting only the distinct ones).

The product of its (nonzero) digits is 6584094720, while the sum is 79.

The spelling of 396786952340872 in words is "three hundred ninety-six trillion, seven hundred eighty-six billion, nine hundred fifty-two million, three hundred forty thousand, eight hundred seventy-two".