47494877 has 2 divisors, whose sum is σ = 47494878. Its totient is φ = 47494876.

The previous prime is 47494873. The next prime is 47494913. The reversal of 47494877 is 77849474.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46594276 + 900601 = 6826^2 + 949^2 .

It is a cyclic number.

It is not a de Polignac number, because 47494877 - 2² = 47494873 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 (47494873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23747438 + 23747439.

It is an arithmetic number, because the mean of its divisors is an integer number (23747439).

Almost surely, 2^47494877 is an apocalyptic number.

It is an amenable number.

47494877 is a deficient number, since it is larger than the sum of its proper divisors (1).

47494877 is an equidigital number, since it uses as much as digits as its factorization.

47494877 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1580544, while the sum is 50.

The square root of 47494877 is about 6891.6527045405. The cubic root of 47494877 is about 362.1448018126.

The spelling of 47494877 in words is "forty-seven million, four hundred ninety-four thousand, eight hundred seventy-seven".