78898680 has 192 divisors, whose sum is σ = 296524800. Its totient is φ = 17821440.

The previous prime is 78898667. The next prime is 78898691. The reversal of 78898680 is 8689887.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 330001 + ... + 330239.

It is an arithmetic number, because the mean of its divisors is an integer number (1544400).

Almost surely, 2^78898680 is an apocalyptic number.

78898680 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 78898680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148262400).

78898680 is an abundant number, since it is smaller than the sum of its proper divisors (217626120).

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

78898680 is a wasteful number, since it uses less digits than its factorization.

78898680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394 (or 387 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 54.

The square root of 78898680 is about 8882.4928933267. The cubic root of 78898680 is about 428.9005262706.

The spelling of 78898680 in words is "seventy-eight million, eight hundred ninety-eight thousand, six hundred eighty".