40579597 has 2 divisors, whose sum is σ = 40579598. Its totient is φ = 40579596.

The previous prime is 40579577. The next prime is 40579603. The reversal of 40579597 is 79597504.

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., 21473956 + 19105641 = 4634^2 + 4371^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40579597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40579507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20289798 + 20289799.

It is an arithmetic number, because the mean of its divisors is an integer number (20289799).

Almost surely, 2^40579597 is an apocalyptic number.

It is an amenable number.

40579597 is a deficient number, since it is larger than the sum of its proper divisors (1).

40579597 is an equidigital number, since it uses as much as digits as its factorization.

40579597 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 396900, while the sum is 46.

The square root of 40579597 is about 6370.2116919299. The cubic root of 40579597 is about 343.6391028720.

The spelling of 40579597 in words is "forty million, five hundred seventy-nine thousand, five hundred ninety-seven".