78739076 has 12 divisors (see below), whose sum is σ = 148392972. Its totient is φ = 36341088.

The previous prime is 78739069. The next prime is 78739109. The reversal of 78739076 is 67093787.

It can be written as a sum of positive squares in 2 ways, for example, as 43217476 + 35521600 = 6574^2 + 5960^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 78739076.

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, 757055 + ... + 757158.

It is an arithmetic number, because the mean of its divisors is an integer number (12366081).

Almost surely, 2^78739076 is an apocalyptic number.

It is an amenable number.

78739076 is a deficient number, since it is larger than the sum of its proper divisors (69653896).

78739076 is a wasteful number, since it uses less digits than its factorization.

78739076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1514230 (or 1514228 counting only the distinct ones).

The product of its (nonzero) digits is 444528, while the sum is 47.

The square root of 78739076 is about 8873.5041556310. The cubic root of 78739076 is about 428.6111236672.

The spelling of 78739076 in words is "seventy-eight million, seven hundred thirty-nine thousand, seventy-six".