78826286 has 16 divisors (see below), whose sum is σ = 147415680. Its totient is φ = 30711480.

The previous prime is 78826271. The next prime is 78826303. The reversal of 78826286 is 68262887.

78826286 is an esthetic number in base 8, because in such base its adjacent digits differ by 1.

It is a self number, because there is not a number n which added to its sum of digits gives 78826286.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 255776 + ... + 256083.

It is an arithmetic number, because the mean of its divisors is an integer number (9213480).

Almost surely, 2^78826286 is an apocalyptic number.

78826286 is a deficient number, since it is larger than the sum of its proper divisors (68589394).

78826286 is a wasteful number, since it uses less digits than its factorization.

78826286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511879.

The product of its digits is 516096, while the sum is 47.

The square root of 78826286 is about 8878.4168633828. The cubic root of 78826286 is about 428.7693059671.

The spelling of 78826286 in words is "seventy-eight million, eight hundred twenty-six thousand, two hundred eighty-six".