78701058 has 90 divisors (see below), whose sum is σ = 192012843. Its totient is φ = 24088320.

The previous prime is 78701039. The next prime is 78701083. The reversal of 78701058 is 85010787.

It can be written as a sum of positive squares in 5 ways, for example, as 19210689 + 59490369 = 4383^2 + 7713^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=6273.

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 1919518 + ... + 1919558.

Almost surely, 2^78701058 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78701058

78701058 is an abundant number, since it is smaller than the sum of its proper divisors (113311785).

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

78701058 is a wasteful number, since it uses less digits than its factorization.

78701058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130 (or 63 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 36.

The square root of 78701058 is about 8871.3616767664. The cubic root of 78701058 is about 428.5421297113.

The spelling of 78701058 in words is "seventy-eight million, seven hundred one thousand, fifty-eight".