78358606 has 4 divisors (see below), whose sum is σ = 117537912. Its totient is φ = 39179302.

The previous prime is 78358601. The next prime is 78358633. The reversal of 78358606 is 60685387.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60685387 = 7 ⋅8669341.

It is a super-2 number, since 2×78358606² = 12280142268526472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78358601) 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 as a sum of consecutive naturals, namely, 19589650 + ... + 19589653.

It is an arithmetic number, because the mean of its divisors is an integer number (29384478).

Almost surely, 2^78358606 is an apocalyptic number.

78358606 is a deficient number, since it is larger than the sum of its proper divisors (39179306).

78358606 is a wasteful number, since it uses less digits than its factorization.

78358606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39179305.

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 78358606 is about 8852.0396519672. The cubic root of 78358606 is about 427.9196540304.

The spelling of 78358606 in words is "seventy-eight million, three hundred fifty-eight thousand, six hundred six".