78855103 has 8 divisors (see below), whose sum is σ = 83600000. Its totient is φ = 74247840.

The previous prime is 78855071. The next prime is 78855137. The reversal of 78855103 is 30155887.

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 78855103 - 2⁵ = 78855071 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78855703) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33228 + ... + 35521.

It is an arithmetic number, because the mean of its divisors is an integer number (10450000).

Almost surely, 2^78855103 is an apocalyptic number.

78855103 is a deficient number, since it is larger than the sum of its proper divisors (4744897).

78855103 is a wasteful number, since it uses less digits than its factorization.

78855103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68817.

The product of its (nonzero) digits is 33600, while the sum is 37.

The square root of 78855103 is about 8880.0395832451. The cubic root of 78855103 is about 428.8215488603.

The spelling of 78855103 in words is "seventy-eight million, eight hundred fifty-five thousand, one hundred three".