78698960 has 20 divisors (see below), whose sum is σ = 182975268. Its totient is φ = 31479552.

The previous prime is 78698947. The next prime is 78698989. The reversal of 78698960 is 6989687.

It can be written as a sum of positive squares in 2 ways, for example, as 23464336 + 55234624 = 4844^2 + 7432^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 491789 + ... + 491948.

Almost surely, 2^78698960 is an apocalyptic number.

It is an amenable number.

78698960 is an abundant number, since it is smaller than the sum of its proper divisors (104276308).

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

78698960 is a wasteful number, since it uses less digits than its factorization.

78698960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 983750 (or 983744 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 53.

The square root of 78698960 is about 8871.2434303202. The cubic root of 78698960 is about 428.5383216754.

The spelling of 78698960 in words is "seventy-eight million, six hundred ninety-eight thousand, nine hundred sixty".