87252269 has 4 divisors (see below), whose sum is σ = 93963996. Its totient is φ = 80540544.

The previous prime is 87252251. The next prime is 87252281. The reversal of 87252269 is 96225278.

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 34515625 + 52736644 = 5875^2 + 7262^2 .

It is a cyclic number.

It is not a de Polignac number, because 87252269 - 2¹⁶ = 87186733 is a prime.

It is a super-2 number, since 2×87252269² = 15225916891296722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87252239) 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, 3355844 + ... + 3355869.

It is an arithmetic number, because the mean of its divisors is an integer number (23490999).

Almost surely, 2^87252269 is an apocalyptic number.

It is an amenable number.

87252269 is a deficient number, since it is larger than the sum of its proper divisors (6711727).

87252269 is a wasteful number, since it uses less digits than its factorization.

87252269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6711726.

The product of its digits is 120960, while the sum is 41.

The square root of 87252269 is about 9340.8923021305. The cubic root of 87252269 is about 443.5326308540.

The spelling of 87252269 in words is "eighty-seven million, two hundred fifty-two thousand, two hundred sixty-nine".