47153857 has 2 divisors, whose sum is σ = 47153858. Its totient is φ = 47153856.

The previous prime is 47153849. The next prime is 47153861. The reversal of 47153857 is 75835174.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44209201 + 2944656 = 6649^2 + 1716^2 .

It is a cyclic number.

It is not a de Polignac number, because 47153857 - 2³ = 47153849 is a prime.

It is not a weakly prime, because it can be changed into another prime (47153837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23576928 + 23576929.

It is an arithmetic number, because the mean of its divisors is an integer number (23576929).

Almost surely, 2^47153857 is an apocalyptic number.

It is an amenable number.

47153857 is a deficient number, since it is larger than the sum of its proper divisors (1).

47153857 is an equidigital number, since it uses as much as digits as its factorization.

47153857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 117600, while the sum is 40.

The square root of 47153857 is about 6866.8666071215. The cubic root of 47153857 is about 361.2759685678.

The spelling of 47153857 in words is "forty-seven million, one hundred fifty-three thousand, eight hundred fifty-seven".