47858431 has 2 divisors, whose sum is σ = 47858432. Its totient is φ = 47858430.

The previous prime is 47858401. The next prime is 47858443. The reversal of 47858431 is 13485874.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47858431 - 2⁵ = 47858399 is a prime.

It is a super-2 number, since 2×47858431² = 4580858835563522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47858401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23929215 + 23929216.

It is an arithmetic number, because the mean of its divisors is an integer number (23929216).

Almost surely, 2^47858431 is an apocalyptic number.

47858431 is a deficient number, since it is larger than the sum of its proper divisors (1).

47858431 is an equidigital number, since it uses as much as digits as its factorization.

47858431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 107520, while the sum is 40.

The square root of 47858431 is about 6917.9788233269. The cubic root of 47858431 is about 363.0664779199.

The spelling of 47858431 in words is "forty-seven million, eight hundred fifty-eight thousand, four hundred thirty-one".