41607991 has 2 divisors, whose sum is σ = 41607992. Its totient is φ = 41607990.

The previous prime is 41607941. The next prime is 41607997. The reversal of 41607991 is 19970614.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 41607991 - 2⁹ = 41607479 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 41607991.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41607997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20803995 + 20803996.

It is an arithmetic number, because the mean of its divisors is an integer number (20803996).

Almost surely, 2^41607991 is an apocalyptic number.

41607991 is a deficient number, since it is larger than the sum of its proper divisors (1).

41607991 is an equidigital number, since it uses as much as digits as its factorization.

41607991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 41607991 is about 6450.4256448703. The cubic root of 41607991 is about 346.5178269874.

The spelling of 41607991 in words is "forty-one million, six hundred seven thousand, nine hundred ninety-one".