40675861 has 2 divisors, whose sum is σ = 40675862. Its totient is φ = 40675860.

The previous prime is 40675853. The next prime is 40675867. The reversal of 40675861 is 16857604.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39250225 + 1425636 = 6265^2 + 1194^2 .

It is a cyclic number.

It is not a de Polignac number, because 40675861 - 2³ = 40675853 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40675861.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40675867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20337930 + 20337931.

It is an arithmetic number, because the mean of its divisors is an integer number (20337931).

Almost surely, 2^40675861 is an apocalyptic number.

It is an amenable number.

40675861 is a deficient number, since it is larger than the sum of its proper divisors (1).

40675861 is an equidigital number, since it uses as much as digits as its factorization.

40675861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 40675861 is about 6377.7630090808. The cubic root of 40675861 is about 343.9106182282.

It can be divided in two parts, 406 and 75861, that added together give a palindrome (76267).

The spelling of 40675861 in words is "forty million, six hundred seventy-five thousand, eight hundred sixty-one".