78472800 has 360 divisors, whose sum is σ = 328947696. Its totient is φ = 17832960.

The previous prime is 78472789. The next prime is 78472817. The reversal of 78472800 is 827487.

It is a tau number, because it is divible by the number of its divisors (360).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 453514 + ... + 453686.

Almost surely, 2^78472800 is an apocalyptic number.

78472800 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78472800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164473848).

78472800 is an abundant number, since it is smaller than the sum of its proper divisors (250474896).

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

78472800 is a wasteful number, since it uses less digits than its factorization.

78472800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212 (or 190 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 36.

The square root of 78472800 is about 8858.4874555423. The cubic root of 78472800 is about 428.1274258836.

It can be divided in two parts, 78 and 472800, that added together give a triangular number (472878 = T₉₇₂).

The spelling of 78472800 in words is "seventy-eight million, four hundred seventy-two thousand, eight hundred".