78474552 has 64 divisors (see below), whose sum is σ = 213538080. Its totient is φ = 23887872.

The previous prime is 78474523. The next prime is 78474569. The reversal of 78474552 is 25547487.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28968 + ... + 31560.

Almost surely, 2^78474552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78474552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106769040).

78474552 is an abundant number, since it is smaller than the sum of its proper divisors (135063528).

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

78474552 is a wasteful number, since it uses less digits than its factorization.

78474552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2712 (or 2708 counting only the distinct ones).

The product of its digits is 313600, while the sum is 42.

The square root of 78474552 is about 8858.5863432040. The cubic root of 78474552 is about 428.1306120137.

It can be divided in two parts, 78 and 474552, that multiplied together give a 4-th power (37015056 = 78⁴).

The spelling of 78474552 in words is "seventy-eight million, four hundred seventy-four thousand, five hundred fifty-two".