407891941 has 2 divisors, whose sum is σ = 407891942. Its totient is φ = 407891940.

The previous prime is 407891929. The next prime is 407891951. The reversal of 407891941 is 149198704.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 405861316 + 2030625 = 20146^2 + 1425^2 .

It is a cyclic number.

It is not a de Polignac number, because 407891941 - 2⁵ = 407891909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (407891951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203945970 + 203945971.

It is an arithmetic number, because the mean of its divisors is an integer number (203945971).

Almost surely, 2^407891941 is an apocalyptic number.

It is an amenable number.

407891941 is a deficient number, since it is larger than the sum of its proper divisors (1).

407891941 is an equidigital number, since it uses as much as digits as its factorization.

407891941 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 43.

The square root of 407891941 is about 20196.3348407576. The cubic root of 407891941 is about 741.6204694422.

The spelling of 407891941 in words is "four hundred seven million, eight hundred ninety-one thousand, nine hundred forty-one".