87232771 has 2 divisors, whose sum is σ = 87232772. Its totient is φ = 87232770.

The previous prime is 87232759. The next prime is 87232793. The reversal of 87232771 is 17723278.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87232771 - 2⁹ = 87232259 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 87232771.

It is not a weakly prime, because it can be changed into another prime (87232571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43616385 + 43616386.

It is an arithmetic number, because the mean of its divisors is an integer number (43616386).

Almost surely, 2^87232771 is an apocalyptic number.

87232771 is a deficient number, since it is larger than the sum of its proper divisors (1).

87232771 is an equidigital number, since it uses as much as digits as its factorization.

87232771 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32928, while the sum is 37.

The square root of 87232771 is about 9339.8485533760. The cubic root of 87232771 is about 443.4995900953.

It can be divided in two parts, 8723277 and 1, that added together give a palindrome (8723278).

The spelling of 87232771 in words is "eighty-seven million, two hundred thirty-two thousand, seven hundred seventy-one".