87464717 has 2 divisors, whose sum is σ = 87464718. Its totient is φ = 87464716.

The previous prime is 87464693. The next prime is 87464719. The reversal of 87464717 is 71746478.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81613156 + 5851561 = 9034^2 + 2419^2 .

It is a cyclic number.

It is not a de Polignac number, because 87464717 - 2¹² = 87460621 is a prime.

Together with 87464719, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87464719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43732358 + 43732359.

It is an arithmetic number, because the mean of its divisors is an integer number (43732359).

Almost surely, 2^87464717 is an apocalyptic number.

It is an amenable number.

87464717 is a deficient number, since it is larger than the sum of its proper divisors (1).

87464717 is an equidigital number, since it uses as much as digits as its factorization.

87464717 is an evil number, because the sum of its binary digits is even.

The product of its digits is 263424, while the sum is 44.

The square root of 87464717 is about 9352.2573210963. The cubic root of 87464717 is about 443.8923206262.

It can be divided in two parts, 8746471 and 7, that added together give a palindrome (8746478).

The spelling of 87464717 in words is "eighty-seven million, four hundred sixty-four thousand, seven hundred seventeen".