40692961 has 2 divisors, whose sum is σ = 40692962. Its totient is φ = 40692960.

The previous prime is 40692947. The next prime is 40692983. The reversal of 40692961 is 16929604.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28686736 + 12006225 = 5356^2 + 3465^2 .

It is a cyclic number.

It is not a de Polignac number, because 40692961 - 2⁷ = 40692833 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40692961.

It is not a weakly prime, because it can be changed into another prime (40692941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20346480 + 20346481.

It is an arithmetic number, because the mean of its divisors is an integer number (20346481).

Almost surely, 2^40692961 is an apocalyptic number.

It is an amenable number.

40692961 is a deficient number, since it is larger than the sum of its proper divisors (1).

40692961 is an equidigital number, since it uses as much as digits as its factorization.

40692961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 40692961 is about 6379.1034636538. The cubic root of 40692961 is about 343.9588044458.

The spelling of 40692961 in words is "forty million, six hundred ninety-two thousand, nine hundred sixty-one".