40616659 has 2 divisors, whose sum is σ = 40616660. Its totient is φ = 40616658.

The previous prime is 40616651. The next prime is 40616669. The reversal of 40616659 is 95661604.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40616659 - 2³ = 40616651 is a prime.

It is not a weakly prime, because it can be changed into another prime (40616651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20308329 + 20308330.

It is an arithmetic number, because the mean of its divisors is an integer number (20308330).

Almost surely, 2^40616659 is an apocalyptic number.

40616659 is a deficient number, since it is larger than the sum of its proper divisors (1).

40616659 is an equidigital number, since it uses as much as digits as its factorization.

40616659 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 40616659 is about 6373.1200365284. The cubic root of 40616659 is about 343.7436880824.

The spelling of 40616659 in words is "forty million, six hundred sixteen thousand, six hundred fifty-nine".