78996544 has 63 divisors (see below), whose sum is σ = 174027973. Its totient is φ = 35552000.

The previous prime is 78996539. The next prime is 78996557. The reversal of 78996544 is 44569987.

It is a happy number.

The square root of 78996544 is 8888.

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

It can be written as a sum of positive squares in only one way, i.e., 75898944 + 3097600 = 8712^2 + 1760^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 78996491 and 78996500.

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, 782094 + ... + 782194.

Almost surely, 2^78996544 is an apocalyptic number.

78996544 is the 8888-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78996544

78996544 is an abundant number, since it is smaller than the sum of its proper divisors (95031429).

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

78996544 is a wasteful number, since it uses less digits than its factorization.

78996544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236 (or 114 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 52.

The cubic root of 78996544 is about 429.0777855884.

The spelling of 78996544 in words is "seventy-eight million, nine hundred ninety-six thousand, five hundred forty-four".