396771527 has 2 divisors, whose sum is σ = 396771528. Its totient is φ = 396771526.

The previous prime is 396771493. The next prime is 396771539. The reversal of 396771527 is 725177693.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 396771527 - 2²² = 392577223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (396731527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198385763 + 198385764.

It is an arithmetic number, because the mean of its divisors is an integer number (198385764).

Almost surely, 2^396771527 is an apocalyptic number.

396771527 is a deficient number, since it is larger than the sum of its proper divisors (1).

396771527 is an equidigital number, since it uses as much as digits as its factorization.

396771527 is an evil number, because the sum of its binary digits is even.

The product of its digits is 555660, while the sum is 47.

The square root of 396771527 is about 19919.1246544621. The cubic root of 396771527 is about 734.8186431474.

The spelling of 396771527 in words is "three hundred ninety-six million, seven hundred seventy-one thousand, five hundred twenty-seven".