87378269 has 8 divisors (see below), whose sum is σ = 95908512. Its totient is φ = 78945840.

The previous prime is 87378253. The next prime is 87378271. The reversal of 87378269 is 96287378.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 87378269 - 2⁴ = 87378253 is a prime.

It is a super-2 number, since 2×87378269² = 15269923786872722, 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 (87378569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22574 + ... + 26159.

It is an arithmetic number, because the mean of its divisors is an integer number (11988564).

Almost surely, 2^87378269 is an apocalyptic number.

It is an amenable number.

87378269 is a deficient number, since it is larger than the sum of its proper divisors (8530243).

87378269 is a wasteful number, since it uses less digits than its factorization.

87378269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48907.

The product of its digits is 1016064, while the sum is 50.

The square root of 87378269 is about 9347.6344066293. The cubic root of 87378269 is about 443.7460282922.

The spelling of 87378269 in words is "eighty-seven million, three hundred seventy-eight thousand, two hundred sixty-nine".