47180851 has 2 divisors, whose sum is σ = 47180852. Its totient is φ = 47180850.

The previous prime is 47180821. The next prime is 47180863. The reversal of 47180851 is 15808174.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47180851 - 2⁷ = 47180723 is a prime.

It is not a weakly prime, because it can be changed into another prime (47180801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23590425 + 23590426.

It is an arithmetic number, because the mean of its divisors is an integer number (23590426).

Almost surely, 2^47180851 is an apocalyptic number.

47180851 is a deficient number, since it is larger than the sum of its proper divisors (1).

47180851 is an equidigital number, since it uses as much as digits as its factorization.

47180851 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8960, while the sum is 34.

The square root of 47180851 is about 6868.8318511957. The cubic root of 47180851 is about 361.3448948710.

The spelling of 47180851 in words is "forty-seven million, one hundred eighty thousand, eight hundred fifty-one".