40654877 has 2 divisors, whose sum is σ = 40654878. Its totient is φ = 40654876.

The previous prime is 40654849. The next prime is 40654879. The reversal of 40654877 is 77845604.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40271716 + 383161 = 6346^2 + 619^2 .

It is a cyclic number.

It is not a de Polignac number, because 40654877 - 2¹⁸ = 40392733 is a prime.

Together with 40654879, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40654879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20327438 + 20327439.

It is an arithmetic number, because the mean of its divisors is an integer number (20327439).

Almost surely, 2^40654877 is an apocalyptic number.

It is an amenable number.

40654877 is a deficient number, since it is larger than the sum of its proper divisors (1).

40654877 is an equidigital number, since it uses as much as digits as its factorization.

40654877 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 188160, while the sum is 41.

The square root of 40654877 is about 6376.1177059399. The cubic root of 40654877 is about 343.8514688001.

The spelling of 40654877 in words is "forty million, six hundred fifty-four thousand, eight hundred seventy-seven".