47192491 has 2 divisors, whose sum is σ = 47192492. Its totient is φ = 47192490.

The previous prime is 47192449. The next prime is 47192503. The reversal of 47192491 is 19429174.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47192491 - 2¹¹ = 47190443 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 47192491.

It is not a weakly prime, because it can be changed into another prime (47192401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23596245 + 23596246.

It is an arithmetic number, because the mean of its divisors is an integer number (23596246).

Almost surely, 2^47192491 is an apocalyptic number.

47192491 is a deficient number, since it is larger than the sum of its proper divisors (1).

47192491 is an equidigital number, since it uses as much as digits as its factorization.

47192491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 37.

The square root of 47192491 is about 6869.6791045871. The cubic root of 47192491 is about 361.3746082585.

The spelling of 47192491 in words is "forty-seven million, one hundred ninety-two thousand, four hundred ninety-one".