18348803 has 6 divisors (see below), whose sum is σ = 20168652. Its totient is φ = 16680620.

The previous prime is 18348773. The next prime is 18348817. The reversal of 18348803 is 30884381.

It is not a de Polignac number, because 18348803 - 2¹² = 18344707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18348103) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 75701 + ... + 75942.

It is an arithmetic number, because the mean of its divisors is an integer number (3361442).

Almost surely, 2^18348803 is an apocalyptic number.

18348803 is a deficient number, since it is larger than the sum of its proper divisors (1819849).

18348803 is a wasteful number, since it uses less digits than its factorization.

18348803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151665 (or 151654 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 18348803 is about 4283.5502798496. The cubic root of 18348803 is about 263.7561405547.

The spelling of 18348803 in words is "eighteen million, three hundred forty-eight thousand, eight hundred three".