396432377723 has 2 divisors, whose sum is σ = 396432377724. Its totient is φ = 396432377722.

The previous prime is 396432377629. The next prime is 396432377729. The reversal of 396432377723 is 327773234693.

It is a strong prime.

It is an emirp because it is prime and its reverse (327773234693) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-396432377723 is a prime.

It is a super-2 number, since 2×396432377723² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (396432377729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198216188861 + 198216188862.

It is an arithmetic number, because the mean of its divisors is an integer number (198216188862).

Almost surely, 2^396432377723 is an apocalyptic number.

396432377723 is a deficient number, since it is larger than the sum of its proper divisors (1).

396432377723 is an equidigital number, since it uses as much as digits as its factorization.

396432377723 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24004512, while the sum is 56.

The spelling of 396432377723 in words is "three hundred ninety-six billion, four hundred thirty-two million, three hundred seventy-seven thousand, seven hundred twenty-three".