47430431 has 2 divisors, whose sum is σ = 47430432. Its totient is φ = 47430430.

The previous prime is 47430421. The next prime is 47430443. The reversal of 47430431 is 13403474.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47430431 - 2¹⁴ = 47414047 is a prime.

It is a super-2 number, since 2×47430431² = 4499291569691522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 47430431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47430401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23715215 + 23715216.

It is an arithmetic number, because the mean of its divisors is an integer number (23715216).

Almost surely, 2^47430431 is an apocalyptic number.

47430431 is a deficient number, since it is larger than the sum of its proper divisors (1).

47430431 is an equidigital number, since it uses as much as digits as its factorization.

47430431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 47430431 is about 6886.9754609698. The cubic root of 47430431 is about 361.9809290646.

The spelling of 47430431 in words is "forty-seven million, four hundred thirty thousand, four hundred thirty-one".