396277004257 has 2 divisors, whose sum is σ = 396277004258. Its totient is φ = 396277004256.

The previous prime is 396277004237. The next prime is 396277004297. The reversal of 396277004257 is 752400772693.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 365342878096 + 30934126161 = 604436^2 + 175881^2 .

It is a cyclic number.

It is not a de Polignac number, because 396277004257 - 2⁷ = 396277004129 is a prime.

It is a super-2 number, since 2×396277004257² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (396277004237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198138502128 + 198138502129.

It is an arithmetic number, because the mean of its divisors is an integer number (198138502129).

Almost surely, 2^396277004257 is an apocalyptic number.

It is an amenable number.

396277004257 is a deficient number, since it is larger than the sum of its proper divisors (1).

396277004257 is an equidigital number, since it uses as much as digits as its factorization.

396277004257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4445280, while the sum is 52.

The spelling of 396277004257 in words is "three hundred ninety-six billion, two hundred seventy-seven million, four thousand, two hundred fifty-seven".