40979597 has 2 divisors, whose sum is σ = 40979598. Its totient is φ = 40979596.

The previous prime is 40979593. The next prime is 40979633. The reversal of 40979597 is 79597904.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30096196 + 10883401 = 5486^2 + 3299^2 .

It is a cyclic number.

It is not a de Polignac number, because 40979597 - 2² = 40979593 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40979593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20489798 + 20489799.

It is an arithmetic number, because the mean of its divisors is an integer number (20489799).

Almost surely, 2^40979597 is an apocalyptic number.

It is an amenable number.

40979597 is a deficient number, since it is larger than the sum of its proper divisors (1).

40979597 is an equidigital number, since it uses as much as digits as its factorization.

40979597 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 714420, while the sum is 50.

The square root of 40979597 is about 6401.5308325431. The cubic root of 40979597 is about 344.7645161929.

The spelling of 40979597 in words is "forty million, nine hundred seventy-nine thousand, five hundred ninety-seven".