40579963 has 2 divisors, whose sum is σ = 40579964. Its totient is φ = 40579962.

The previous prime is 40579951. The next prime is 40580011. The reversal of 40579963 is 36997504.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40579963 - 2²⁵ = 7025531 is a prime.

It is not a weakly prime, because it can be changed into another prime (40579933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20289981 + 20289982.

It is an arithmetic number, because the mean of its divisors is an integer number (20289982).

Almost surely, 2^40579963 is an apocalyptic number.

40579963 is a deficient number, since it is larger than the sum of its proper divisors (1).

40579963 is an equidigital number, since it uses as much as digits as its factorization.

40579963 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 204120, while the sum is 43.

The square root of 40579963 is about 6370.2404193248. The cubic root of 40579963 is about 343.6401359982.

The spelling of 40579963 in words is "forty million, five hundred seventy-nine thousand, nine hundred sixty-three".