78101803 has 16 divisors (see below), whose sum is σ = 88861696. Its totient is φ = 68130720.

The previous prime is 78101797. The next prime is 78101831. The reversal of 78101803 is 30810187.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 78101803 - 2⁹ = 78101291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78101003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15076 + ... + 19582.

It is an arithmetic number, because the mean of its divisors is an integer number (5553856).

Almost surely, 2^78101803 is an apocalyptic number.

78101803 is a deficient number, since it is larger than the sum of its proper divisors (10759893).

78101803 is a wasteful number, since it uses less digits than its factorization.

78101803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4594.

The product of its (nonzero) digits is 1344, while the sum is 28.

The square root of 78101803 is about 8837.5224469305. The cubic root of 78101803 is about 427.4516717480.

The spelling of 78101803 in words is "seventy-eight million, one hundred one thousand, eight hundred three".