87408578 has 8 divisors (see below), whose sum is σ = 134656572. Its totient is φ = 42523056.

The previous prime is 87408557. The next prime is 87408583. The reversal of 87408578 is 87580478.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 85137529 + 2271049 = 9227^2 + 1507^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 590525 + ... + 590672.

Almost surely, 2^87408578 is an apocalyptic number.

87408578 is a deficient number, since it is larger than the sum of its proper divisors (47247994).

87408578 is a wasteful number, since it uses less digits than its factorization.

87408578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1181236.

The product of its (nonzero) digits is 501760, while the sum is 47.

The square root of 87408578 is about 9349.2554783790. The cubic root of 87408578 is about 443.7973299249.

The spelling of 87408578 in words is "eighty-seven million, four hundred eight thousand, five hundred seventy-eight".