47370991 has 2 divisors, whose sum is σ = 47370992. Its totient is φ = 47370990.

The previous prime is 47370937. The next prime is 47371003. The reversal of 47370991 is 19907374.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47370991 - 2⁷ = 47370863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47371991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23685495 + 23685496.

It is an arithmetic number, because the mean of its divisors is an integer number (23685496).

Almost surely, 2^47370991 is an apocalyptic number.

47370991 is a deficient number, since it is larger than the sum of its proper divisors (1).

47370991 is an equidigital number, since it uses as much as digits as its factorization.

47370991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47628, while the sum is 40.

The square root of 47370991 is about 6882.6587159324. The cubic root of 47370991 is about 361.8296538863.

The spelling of 47370991 in words is "forty-seven million, three hundred seventy thousand, nine hundred ninety-one".