78930422 has 16 divisors (see below), whose sum is σ = 127234800. Its totient is φ = 36588288.

The previous prime is 78930421. The next prime is 78930461. The reversal of 78930422 is 22403987.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78930421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15047 + ... + 19602.

It is an arithmetic number, because the mean of its divisors is an integer number (7952175).

Almost surely, 2^78930422 is an apocalyptic number.

78930422 is a deficient number, since it is larger than the sum of its proper divisors (48304378).

78930422 is a wasteful number, since it uses less digits than its factorization.

78930422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34735.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 78930422 is about 8884.2794868239. The cubic root of 78930422 is about 428.9580360422.

The spelling of 78930422 in words is "seventy-eight million, nine hundred thirty thousand, four hundred twenty-two".