78233726 has 8 divisors (see below), whose sum is σ = 117428184. Its totient is φ = 39091000.

The previous prime is 78233723. The next prime is 78233737. The reversal of 78233726 is 62733287.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×78233726² = 12241031767686152, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 78233726.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78233723) 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 3 ways as a sum of consecutive naturals, for example, 8900 + ... + 15351.

It is an arithmetic number, because the mean of its divisors is an integer number (14678523).

Almost surely, 2^78233726 is an apocalyptic number.

78233726 is a deficient number, since it is larger than the sum of its proper divisors (39194458).

78233726 is a wasteful number, since it uses less digits than its factorization.

78233726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25866.

The product of its digits is 84672, while the sum is 38.

The square root of 78233726 is about 8844.9830977792. The cubic root of 78233726 is about 427.6922081775.

The spelling of 78233726 in words is "seventy-eight million, two hundred thirty-three thousand, seven hundred twenty-six".