40692947 has 2 divisors, whose sum is σ = 40692948. Its totient is φ = 40692946.

The previous prime is 40692941. The next prime is 40692961. The reversal of 40692947 is 74929604.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40692947 is a prime.

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, 20346473 + 20346474.

It is an arithmetic number, because the mean of its divisors is an integer number (20346474).

Almost surely, 2^40692947 is an apocalyptic number.

40692947 is a deficient number, since it is larger than the sum of its proper divisors (1).

40692947 is an equidigital number, since it uses as much as digits as its factorization.

40692947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 40692947 is about 6379.1023663208. The cubic root of 40692947 is about 343.9587650006.

The spelling of 40692947 in words is "forty million, six hundred ninety-two thousand, nine hundred forty-seven".