87364469 has 2 divisors, whose sum is σ = 87364470. Its totient is φ = 87364468.

The previous prime is 87364457. The next prime is 87364483. The reversal of 87364469 is 96446378.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87179569 + 184900 = 9337^2 + 430^2 .

It is a cyclic number.

It is not a de Polignac number, because 87364469 - 2²⁰ = 86315893 is a prime.

It is a super-2 number, since 2×87364469² = 15265100887303922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87364439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43682234 + 43682235.

It is an arithmetic number, because the mean of its divisors is an integer number (43682235).

Almost surely, 2^87364469 is an apocalyptic number.

It is an amenable number.

87364469 is a deficient number, since it is larger than the sum of its proper divisors (1).

87364469 is an equidigital number, since it uses as much as digits as its factorization.

87364469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 870912, while the sum is 47.

The square root of 87364469 is about 9346.8962228111. The cubic root of 87364469 is about 443.7226661997.

The spelling of 87364469 in words is "eighty-seven million, three hundred sixty-four thousand, four hundred sixty-nine".