396053731 has 2 divisors, whose sum is σ = 396053732. Its totient is φ = 396053730.

The previous prime is 396053699. The next prime is 396053753. The reversal of 396053731 is 137350693.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (137350693) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 396053731 - 2⁵ = 396053699 is a prime.

It is a super-2 number, since 2×396053731² = 313717115678040722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (396053761) by changing a digit.

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 as a sum of consecutive naturals, namely, 198026865 + 198026866.

It is an arithmetic number, because the mean of its divisors is an integer number (198026866).

Almost surely, 2^396053731 is an apocalyptic number.

396053731 is a deficient number, since it is larger than the sum of its proper divisors (1).

396053731 is an equidigital number, since it uses as much as digits as its factorization.

396053731 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51030, while the sum is 37.

The square root of 396053731 is about 19901.0987385119. The cubic root of 396053731 is about 734.3752576091.

The spelling of 396053731 in words is "three hundred ninety-six million, fifty-three thousand, seven hundred thirty-one".