47531807 has 2 divisors, whose sum is σ = 47531808. Its totient is φ = 47531806.

The previous prime is 47531789. The next prime is 47531819. The reversal of 47531807 is 70813574.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47531807 - 2¹⁰ = 47530783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47531837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23765903 + 23765904.

It is an arithmetic number, because the mean of its divisors is an integer number (23765904).

Almost surely, 2^47531807 is an apocalyptic number.

47531807 is a deficient number, since it is larger than the sum of its proper divisors (1).

47531807 is an equidigital number, since it uses as much as digits as its factorization.

47531807 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 47531807 is about 6894.3315121917. The cubic root of 47531807 is about 362.2386403030.

The spelling of 47531807 in words is "forty-seven million, five hundred thirty-one thousand, eight hundred seven".