40712923 has 2 divisors, whose sum is σ = 40712924. Its totient is φ = 40712922.

The previous prime is 40712899. The next prime is 40712927. The reversal of 40712923 is 32921704.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40712923 - 2²⁵ = 7158491 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40712891 and 40712900.

It is not a weakly prime, because it can be changed into another prime (40712927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20356461 + 20356462.

It is an arithmetic number, because the mean of its divisors is an integer number (20356462).

Almost surely, 2^40712923 is an apocalyptic number.

40712923 is a deficient number, since it is larger than the sum of its proper divisors (1).

40712923 is an equidigital number, since it uses as much as digits as its factorization.

40712923 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 40712923 is about 6380.6679117472. The cubic root of 40712923 is about 344.0150384403.

The spelling of 40712923 in words is "forty million, seven hundred twelve thousand, nine hundred twenty-three".