40775923 has 2 divisors, whose sum is σ = 40775924. Its totient is φ = 40775922.

The previous prime is 40775899. The next prime is 40775951. The reversal of 40775923 is 32957704.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40775923 - 2⁹ = 40775411 is a prime.

It is not a weakly prime, because it can be changed into another prime (40775953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20387961 + 20387962.

It is an arithmetic number, because the mean of its divisors is an integer number (20387962).

Almost surely, 2^40775923 is an apocalyptic number.

40775923 is a deficient number, since it is larger than the sum of its proper divisors (1).

40775923 is an equidigital number, since it uses as much as digits as its factorization.

40775923 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52920, while the sum is 37.

The square root of 40775923 is about 6385.6027906534. The cubic root of 40775923 is about 344.1923922662.

It can be divided in two parts, 4077 and 5923, that added together give a 4-th power (10000 = 10⁴).

The spelling of 40775923 in words is "forty million, seven hundred seventy-five thousand, nine hundred twenty-three".