47234831 has 4 divisors (see below), whose sum is σ = 53982672. Its totient is φ = 40486992.

The previous prime is 47234813. The next prime is 47234843. The reversal of 47234831 is 13843274.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13843274 = 2 ⋅6921637.

It is not a de Polignac number, because 47234831 - 2²² = 43040527 is a prime.

It is a super-2 number, since 2×47234831² = 4462258519197122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47234851) 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, 3373910 + ... + 3373923.

It is an arithmetic number, because the mean of its divisors is an integer number (13495668).

Almost surely, 2^47234831 is an apocalyptic number.

47234831 is a deficient number, since it is larger than the sum of its proper divisors (6747841).

47234831 is an equidigital number, since it uses as much as digits as its factorization.

47234831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6747840.

The product of its digits is 16128, while the sum is 32.

The square root of 47234831 is about 6872.7600714706. The cubic root of 47234831 is about 361.4826482390.

The spelling of 47234831 in words is "forty-seven million, two hundred thirty-four thousand, eight hundred thirty-one".