40861477 has 2 divisors, whose sum is σ = 40861478. Its totient is φ = 40861476.

The previous prime is 40861459. The next prime is 40861507. The reversal of 40861477 is 77416804.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29931841 + 10929636 = 5471^2 + 3306^2 .

It is a cyclic number.

It is not a de Polignac number, because 40861477 - 2⁷ = 40861349 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40865477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20430738 + 20430739.

It is an arithmetic number, because the mean of its divisors is an integer number (20430739).

Almost surely, 2^40861477 is an apocalyptic number.

It is an amenable number.

40861477 is a deficient number, since it is larger than the sum of its proper divisors (1).

40861477 is an equidigital number, since it uses as much as digits as its factorization.

40861477 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37632, while the sum is 37.

The square root of 40861477 is about 6392.2982564959. The cubic root of 40861477 is about 344.4329465195.

The spelling of 40861477 in words is "forty million, eight hundred sixty-one thousand, four hundred seventy-seven".