87002369 has 4 divisors (see below), whose sum is σ = 89124420. Its totient is φ = 84880320.

The previous prime is 87002341. The next prime is 87002371. The reversal of 87002369 is 96320078.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2362369 + 84640000 = 1537^2 + 9200^2 .

It is a cyclic number.

It is not a de Polignac number, because 87002369 - 2¹⁶ = 86936833 is a prime.

It is a super-2 number, since 2×87002369² = 15138824423224322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (87002329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1060964 + ... + 1061045.

It is an arithmetic number, because the mean of its divisors is an integer number (22281105).

Almost surely, 2^87002369 is an apocalyptic number.

It is an amenable number.

87002369 is a deficient number, since it is larger than the sum of its proper divisors (2122051).

87002369 is a wasteful number, since it uses less digits than its factorization.

87002369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2122050.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 87002369 is about 9327.5060439541. The cubic root of 87002369 is about 443.1087840301.

The spelling of 87002369 in words is "eighty-seven million, two thousand, three hundred sixty-nine".