396932047 has 2 divisors, whose sum is σ = 396932048. Its totient is φ = 396932046.

The previous prime is 396932033. The next prime is 396932057. The reversal of 396932047 is 740239693.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 396932047 - 2¹¹ = 396929999 is a prime.

It is a super-2 number, since 2×396932047² = 315110099871220418, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 396931994 and 396932012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (396932017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198466023 + 198466024.

It is an arithmetic number, because the mean of its divisors is an integer number (198466024).

Almost surely, 2^396932047 is an apocalyptic number.

396932047 is a deficient number, since it is larger than the sum of its proper divisors (1).

396932047 is an equidigital number, since it uses as much as digits as its factorization.

396932047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 244944, while the sum is 43.

The square root of 396932047 is about 19923.1535405417. The cubic root of 396932047 is about 734.9177238337.

The spelling of 396932047 in words is "three hundred ninety-six million, nine hundred thirty-two thousand, forty-seven".