78685962 has 16 divisors (see below), whose sum is σ = 166629312. Its totient is φ = 24685760.

The previous prime is 78685933. The next prime is 78685987. The reversal of 78685962 is 26958687.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 385614 + ... + 385817.

It is an arithmetic number, because the mean of its divisors is an integer number (10414332).

Almost surely, 2^78685962 is an apocalyptic number.

78685962 is an abundant number, since it is smaller than the sum of its proper divisors (87943350).

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

78685962 is a wasteful number, since it uses less digits than its factorization.

78685962 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771453.

The product of its digits is 1451520, while the sum is 51.

The square root of 78685962 is about 8870.5108082906. The cubic root of 78685962 is about 428.5147277685.

The spelling of 78685962 in words is "seventy-eight million, six hundred eighty-five thousand, nine hundred sixty-two".