47797487 has 2 divisors, whose sum is σ = 47797488. Its totient is φ = 47797486.

The previous prime is 47797471. The next prime is 47797501. The reversal of 47797487 is 78479774.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47797487 - 2⁴ = 47797471 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47797457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23898743 + 23898744.

It is an arithmetic number, because the mean of its divisors is an integer number (23898744).

Almost surely, 2^47797487 is an apocalyptic number.

47797487 is a deficient number, since it is larger than the sum of its proper divisors (1).

47797487 is an equidigital number, since it uses as much as digits as its factorization.

47797487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2765952, while the sum is 53.

The square root of 47797487 is about 6913.5726654169. The cubic root of 47797487 is about 362.9123001234.

It can be divided in two parts, 47797 and 487, that added together give a palindrome (48284).

The spelling of 47797487 in words is "forty-seven million, seven hundred ninety-seven thousand, four hundred eighty-seven".