78429582 has 96 divisors (see below), whose sum is σ = 215115264. Its totient is φ = 20059200.

The previous prime is 78429553. The next prime is 78429599. The reversal of 78429582 is 28592487.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 98008 + ... + 98804.

It is an arithmetic number, because the mean of its divisors is an integer number (2240784).

Almost surely, 2^78429582 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78429582, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107557632).

78429582 is an abundant number, since it is smaller than the sum of its proper divisors (136685682).

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

78429582 is a wasteful number, since it uses less digits than its factorization.

78429582 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 894 (or 891 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 78429582 is about 8856.0477640988. The cubic root of 78429582 is about 428.0488160176.

It can be divided in two parts, 7842 and 9582, that added together give a square (17424 = 132²).

The spelling of 78429582 in words is "seventy-eight million, four hundred twenty-nine thousand, five hundred eighty-two".