47903147 has 2 divisors, whose sum is σ = 47903148. Its totient is φ = 47903146.

The previous prime is 47903143. The next prime is 47903171. The reversal of 47903147 is 74130974.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47903147 - 2² = 47903143 is a prime.

It is a super-2 number, since 2×47903147² = 4589422985007218, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (47903143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23951573 + 23951574.

It is an arithmetic number, because the mean of its divisors is an integer number (23951574).

Almost surely, 2^47903147 is an apocalyptic number.

47903147 is a deficient number, since it is larger than the sum of its proper divisors (1).

47903147 is an equidigital number, since it uses as much as digits as its factorization.

47903147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 47903147 is about 6921.2099375759. The cubic root of 47903147 is about 363.1795184481.

The spelling of 47903147 in words is "forty-seven million, nine hundred three thousand, one hundred forty-seven".