397131467 has 2 divisors, whose sum is σ = 397131468. Its totient is φ = 397131466.

The previous prime is 397131457. The next prime is 397131473. The reversal of 397131467 is 764131793.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 397131467 - 2⁴ = 397131451 is a prime.

It is not a weakly prime, because it can be changed into another prime (397131457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198565733 + 198565734.

It is an arithmetic number, because the mean of its divisors is an integer number (198565734).

Almost surely, 2^397131467 is an apocalyptic number.

397131467 is a deficient number, since it is larger than the sum of its proper divisors (1).

397131467 is an equidigital number, since it uses as much as digits as its factorization.

397131467 is an evil number, because the sum of its binary digits is even.

The product of its digits is 95256, while the sum is 41.

The square root of 397131467 is about 19928.1576418895. The cubic root of 397131467 is about 735.0407782765.

The spelling of 397131467 in words is "three hundred ninety-seven million, one hundred thirty-one thousand, four hundred sixty-seven".