88631947 has 2 divisors, whose sum is σ = 88631948. Its totient is φ = 88631946.

The previous prime is 88631929. The next prime is 88631971. The reversal of 88631947 is 74913688.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-88631947 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 88631897 and 88631906.

It is not a weakly prime, because it can be changed into another prime (88634947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44315973 + 44315974.

It is an arithmetic number, because the mean of its divisors is an integer number (44315974).

Almost surely, 2^88631947 is an apocalyptic number.

88631947 is a deficient number, since it is larger than the sum of its proper divisors (1).

88631947 is an equidigital number, since it uses as much as digits as its factorization.

88631947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 290304, while the sum is 46.

The square root of 88631947 is about 9414.4541530564. The cubic root of 88631947 is about 445.8582049730.

The spelling of 88631947 in words is "eighty-eight million, six hundred thirty-one thousand, nine hundred forty-seven".