397039772627 has 2 divisors, whose sum is σ = 397039772628. Its totient is φ = 397039772626.

The previous prime is 397039772617. The next prime is 397039772659. The reversal of 397039772627 is 726277930793.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-397039772627 is a prime.

It is a super-2 number, since 2×397039772627² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 397039772627.

It is not a weakly prime, because it can be changed into another prime (397039772617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198519886313 + 198519886314.

It is an arithmetic number, because the mean of its divisors is an integer number (198519886314).

Almost surely, 2^397039772627 is an apocalyptic number.

397039772627 is a deficient number, since it is larger than the sum of its proper divisors (1).

397039772627 is an equidigital number, since it uses as much as digits as its factorization.

397039772627 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42007896, while the sum is 62.

The spelling of 397039772627 in words is "three hundred ninety-seven billion, thirty-nine million, seven hundred seventy-two thousand, six hundred twenty-seven".