78112803 has 8 divisors (see below), whose sum is σ = 104850000. Its totient is φ = 51725408.

The previous prime is 78112799. The next prime is 78112871. The reversal of 78112803 is 30821187.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 78112803 - 2² = 78112799 is a prime.

It is a super-2 number, since 2×78112803² = 12203219985033618, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78112003) 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 7 ways as a sum of consecutive naturals, for example, 86928 + ... + 87821.

It is an arithmetic number, because the mean of its divisors is an integer number (13106250).

Almost surely, 2^78112803 is an apocalyptic number.

78112803 is a deficient number, since it is larger than the sum of its proper divisors (26737197).

78112803 is a wasteful number, since it uses less digits than its factorization.

78112803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174901.

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 78112803 is about 8838.1447713873. The cubic root of 78112803 is about 427.4717384963.

The spelling of 78112803 in words is "seventy-eight million, one hundred twelve thousand, eight hundred three".