40861207 has 2 divisors, whose sum is σ = 40861208. Its totient is φ = 40861206.

The previous prime is 40861199. The next prime is 40861213. The reversal of 40861207 is 70216804.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40861207 - 2³ = 40861199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40861237) 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, 20430603 + 20430604.

It is an arithmetic number, because the mean of its divisors is an integer number (20430604).

Almost surely, 2^40861207 is an apocalyptic number.

40861207 is a deficient number, since it is larger than the sum of its proper divisors (1).

40861207 is an equidigital number, since it uses as much as digits as its factorization.

40861207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 40861207 is about 6392.2771372962. The cubic root of 40861207 is about 344.4321878824.

The spelling of 40861207 in words is "forty million, eight hundred sixty-one thousand, two hundred seven".