47611231 has 2 divisors, whose sum is σ = 47611232. Its totient is φ = 47611230.

The previous prime is 47611211. The next prime is 47611261. The reversal of 47611231 is 13211674.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47611231 - 2⁷ = 47611103 is a prime.

It is a super-2 number, since 2×47611231² = 4533658634670722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 47611196 and 47611205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47611211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23805615 + 23805616.

It is an arithmetic number, because the mean of its divisors is an integer number (23805616).

Almost surely, 2^47611231 is an apocalyptic number.

47611231 is a deficient number, since it is larger than the sum of its proper divisors (1).

47611231 is an equidigital number, since it uses as much as digits as its factorization.

47611231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1008, while the sum is 25.

The square root of 47611231 is about 6900.0892023220. The cubic root of 47611231 is about 362.4402907601.

It can be divided in two parts, 4761123 and 1, that added together give a square (4761124 = 2182²).

The spelling of 47611231 in words is "forty-seven million, six hundred eleven thousand, two hundred thirty-one".