78861704 has 32 divisors (see below), whose sum is σ = 156600000. Its totient is φ = 37127232.

The previous prime is 78861697. The next prime is 78861787. The reversal of 78861704 is 40716887.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24797 + ... + 27795.

It is an arithmetic number, because the mean of its divisors is an integer number (4893750).

Almost surely, 2^78861704 is an apocalyptic number.

It is an amenable number.

78861704 is a deficient number, since it is larger than the sum of its proper divisors (77738296).

78861704 is a wasteful number, since it uses less digits than its factorization.

78861704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3197 (or 3193 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 41.

The square root of 78861704 is about 8880.4112517383. The cubic root of 78861704 is about 428.8335141484.

The spelling of 78861704 in words is "seventy-eight million, eight hundred sixty-one thousand, seven hundred four".