47352431 has 4 divisors (see below), whose sum is σ = 54117072. Its totient is φ = 40587792.

The previous prime is 47352421. The next prime is 47352433. The reversal of 47352431 is 13425374.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 47352431 - 2²² = 43158127 is a prime.

It is a super-2 number, since 2×47352431² = 4484505443219522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47352394 and 47352403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47352433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3382310 + ... + 3382323.

It is an arithmetic number, because the mean of its divisors is an integer number (13529268).

Almost surely, 2^47352431 is an apocalyptic number.

47352431 is a deficient number, since it is larger than the sum of its proper divisors (6764641).

47352431 is an equidigital number, since it uses as much as digits as its factorization.

47352431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6764640.

The product of its digits is 10080, while the sum is 29.

The square root of 47352431 is about 6881.3102676743. The cubic root of 47352431 is about 361.7823926442.

The spelling of 47352431 in words is "forty-seven million, three hundred fifty-two thousand, four hundred thirty-one".