78929058 has 32 divisors (see below), whose sum is σ = 172166400. Its totient is φ = 23976576.

The previous prime is 78929051. The next prime is 78929093. The reversal of 78929058 is 85092987.

It is a happy number.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 78928998 and 78929016.

It is not an unprimeable number, because it can be changed into a prime (78929051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 243 + ... + 12566.

It is an arithmetic number, because the mean of its divisors is an integer number (5380200).

Almost surely, 2^78929058 is an apocalyptic number.

78929058 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 78929058, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86083200).

78929058 is an abundant number, since it is smaller than the sum of its proper divisors (93237342).

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

78929058 is a wasteful number, since it uses less digits than its factorization.

78929058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12906.

The product of its (nonzero) digits is 362880, while the sum is 48.

The square root of 78929058 is about 8884.2027216853. The cubic root of 78929058 is about 428.9555650805.

The spelling of 78929058 in words is "seventy-eight million, nine hundred twenty-nine thousand, fifty-eight".