78826275 has 36 divisors (see below), whose sum is σ = 154026600. Its totient is φ = 38217600.

The previous prime is 78826271. The next prime is 78826303. The reversal of 78826275 is 57262887.

It is not a de Polignac number, because 78826275 - 2² = 78826271 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 78826275.

It is not an unprimeable number, because it can be changed into a prime (78826271) 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 in 35 ways as a sum of consecutive naturals, for example, 13450 + ... + 18399.

Almost surely, 2^78826275 is an apocalyptic number.

78826275 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

78826275 is a deficient number, since it is larger than the sum of its proper divisors (75200325).

78826275 is a wasteful number, since it uses less digits than its factorization.

78826275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31876 (or 31868 counting only the distinct ones).

The product of its digits is 376320, while the sum is 45.

The square root of 78826275 is about 8878.4162439030. The cubic root of 78826275 is about 428.7692860226.

The spelling of 78826275 in words is "seventy-eight million, eight hundred twenty-six thousand, two hundred seventy-five".