47261897 has 2 divisors, whose sum is σ = 47261898. Its totient is φ = 47261896.

The previous prime is 47261869. The next prime is 47261917. The reversal of 47261897 is 79816274.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42981136 + 4280761 = 6556^2 + 2069^2 .

It is a cyclic number.

It is not a de Polignac number, because 47261897 - 2⁶ = 47261833 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (47261857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23630948 + 23630949.

It is an arithmetic number, because the mean of its divisors is an integer number (23630949).

Almost surely, 2^47261897 is an apocalyptic number.

It is an amenable number.

47261897 is a deficient number, since it is larger than the sum of its proper divisors (1).

47261897 is an equidigital number, since it uses as much as digits as its factorization.

47261897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 169344, while the sum is 44.

The square root of 47261897 is about 6874.7288673809. The cubic root of 47261897 is about 361.5516793684.

The spelling of 47261897 in words is "forty-seven million, two hundred sixty-one thousand, eight hundred ninety-seven".