78287104 has 81 divisors (see below), whose sum is σ = 184111767. Its totient is φ = 33126912.

The previous prime is 78287093. The next prime is 78287113. The reversal of 78287104 is 40178287.

The square root of 78287104 is 8848.

It is a perfect power (a square), and thus also a powerful number.

It is a super-2 number, since 2×78287104² = 12257741305413632, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 990937 + ... + 991015.

Almost surely, 2^78287104 is an apocalyptic number.

78287104 is the 8848-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78287104

78287104 is an abundant number, since it is smaller than the sum of its proper divisors (105824663).

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

78287104 is an frugal number, since it uses more digits than its factorization.

78287104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188 (or 88 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 37.

The cubic root of 78287104 is about 427.7894559408.

The spelling of 78287104 in words is "seventy-eight million, two hundred eighty-seven thousand, one hundred four".