87669245 has 8 divisors (see below), whose sum is σ = 106168920. Its totient is φ = 69491520.

The previous prime is 87669229. The next prime is 87669269. The reversal of 87669245 is 54296678.

It can be written as a sum of positive squares in 4 ways, for example, as 30228004 + 57441241 = 5498^2 + 7579^2 .

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

It is not a de Polignac number, because 87669245 - 2⁴ = 87669229 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 87669245.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79886 + ... + 80975.

It is an arithmetic number, because the mean of its divisors is an integer number (13271115).

Almost surely, 2^87669245 is an apocalyptic number.

It is an amenable number.

87669245 is a deficient number, since it is larger than the sum of its proper divisors (18499675).

87669245 is a wasteful number, since it uses less digits than its factorization.

87669245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160975.

The product of its digits is 725760, while the sum is 47.

The square root of 87669245 is about 9363.1856224257. The cubic root of 87669245 is about 444.2380514029.

The spelling of 87669245 in words is "eighty-seven million, six hundred sixty-nine thousand, two hundred forty-five".