87769152 has 42 divisors (see below), whose sum is σ = 251576078. Its totient is φ = 29256192.

The previous prime is 87769117. The next prime is 87769159. The reversal of 87769152 is 25196778.

It can be written as a sum of positive squares in only one way, i.e., 76317696 + 11451456 = 8736^2 + 3384^2 .

It is a junction number, because it is equal to n+sod(n) for n = 87769098 and 87769107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87769159) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 75613 + ... + 76764.

Almost surely, 2^87769152 is an apocalyptic number.

It is an amenable number.

87769152 is an abundant number, since it is smaller than the sum of its proper divisors (163806926).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87769152 is a wasteful number, since it uses less digits than its factorization.

87769152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152395 (or 152382 counting only the distinct ones).

The product of its digits is 211680, while the sum is 45.

The square root of 87769152 is about 9368.5191999590. The cubic root of 87769152 is about 444.4067370972.

The spelling of 87769152 in words is "eighty-seven million, seven hundred sixty-nine thousand, one hundred fifty-two".