78823926 has 12 divisors (see below), whose sum is σ = 170785212. Its totient is φ = 26274636.

The previous prime is 78823919. The next prime is 78823931. The reversal of 78823926 is 62932887.

It is a super-2 number, since 2×78823926² = 12426422620106952, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2189536 + ... + 2189571.

It is an arithmetic number, because the mean of its divisors is an integer number (14232101).

Almost surely, 2^78823926 is an apocalyptic number.

78823926 is an abundant number, since it is smaller than the sum of its proper divisors (91961286).

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

78823926 is a wasteful number, since it uses less digits than its factorization.

78823926 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4379115 (or 4379112 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 78823926 is about 8878.2839558104. The cubic root of 78823926 is about 428.7650269137.

The spelling of 78823926 in words is "seventy-eight million, eight hundred twenty-three thousand, nine hundred twenty-six".