47887897 has 2 divisors, whose sum is σ = 47887898. Its totient is φ = 47887896.

The previous prime is 47887871. The next prime is 47887913. The reversal of 47887897 is 79878874.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46389721 + 1498176 = 6811^2 + 1224^2 .

It is a cyclic number.

It is not a de Polignac number, because 47887897 - 2⁷ = 47887769 is a prime.

It is not a weakly prime, because it can be changed into another prime (47887097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23943948 + 23943949.

It is an arithmetic number, because the mean of its divisors is an integer number (23943949).

Almost surely, 2^47887897 is an apocalyptic number.

It is an amenable number.

47887897 is a deficient number, since it is larger than the sum of its proper divisors (1).

47887897 is an equidigital number, since it uses as much as digits as its factorization.

47887897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6322176, while the sum is 58.

The square root of 47887897 is about 6920.1081638945. The cubic root of 47887897 is about 363.1409748740.

It can be divided in two parts, 47887 and 897, that added together give a palindrome (48784).

The spelling of 47887897 in words is "forty-seven million, eight hundred eighty-seven thousand, eight hundred ninety-seven".