78429708 has 72 divisors (see below), whose sum is σ = 234986752. Its totient is φ = 22406544.

The previous prime is 78429707. The next prime is 78429727. The reversal of 78429708 is 80792487.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78429707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1041 + ... + 12567.

Almost surely, 2^78429708 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78429708, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117493376).

78429708 is an abundant number, since it is smaller than the sum of its proper divisors (156557044).

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

78429708 is a wasteful number, since it uses less digits than its factorization.

78429708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11553 (or 11539 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The square root of 78429708 is about 8856.0548778787. The cubic root of 78429708 is about 428.0490452429.

The spelling of 78429708 in words is "seventy-eight million, four hundred twenty-nine thousand, seven hundred eight".