41931997 has 2 divisors, whose sum is σ = 41931998. Its totient is φ = 41931996.

The previous prime is 41931947. The next prime is 41932019. The reversal of 41931997 is 79913914.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41912676 + 19321 = 6474^2 + 139^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-41931997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41931947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20965998 + 20965999.

It is an arithmetic number, because the mean of its divisors is an integer number (20965999).

Almost surely, 2^41931997 is an apocalyptic number.

It is an amenable number.

41931997 is a deficient number, since it is larger than the sum of its proper divisors (1).

41931997 is an equidigital number, since it uses as much as digits as its factorization.

41931997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 61236, while the sum is 43.

The square root of 41931997 is about 6475.4920276377. The cubic root of 41931997 is about 347.4149597817.

The spelling of 41931997 in words is "forty-one million, nine hundred thirty-one thousand, nine hundred ninety-seven".