40597679 has 2 divisors, whose sum is σ = 40597680. Its totient is φ = 40597678.

The previous prime is 40597673. The next prime is 40597721. The reversal of 40597679 is 97679504.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40597679 - 2⁸ = 40597423 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40597673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20298839 + 20298840.

It is an arithmetic number, because the mean of its divisors is an integer number (20298840).

Almost surely, 2^40597679 is an apocalyptic number.

40597679 is a deficient number, since it is larger than the sum of its proper divisors (1).

40597679 is an equidigital number, since it uses as much as digits as its factorization.

40597679 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 476280, while the sum is 47.

The square root of 40597679 is about 6371.6307959580. The cubic root of 40597679 is about 343.6901363964.

The spelling of 40597679 in words is "forty million, five hundred ninety-seven thousand, six hundred seventy-nine".