18734801 has 4 divisors (see below), whose sum is σ = 19052400. Its totient is φ = 18417204.

The previous prime is 18734791. The next prime is 18734803. The reversal of 18734801 is 10843781.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10843781 = 13 ⋅834137.

It is not a de Polignac number, because 18734801 - 2¹⁴ = 18718417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18734803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 158711 + ... + 158828.

It is an arithmetic number, because the mean of its divisors is an integer number (4763100).

Almost surely, 2^18734801 is an apocalyptic number.

It is an amenable number.

18734801 is a deficient number, since it is larger than the sum of its proper divisors (317599).

18734801 is an equidigital number, since it uses as much as digits as its factorization.

18734801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317598.

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 18734801 is about 4328.3716337671. The cubic root of 18734801 is about 265.5928391235.

The spelling of 18734801 in words is "eighteen million, seven hundred thirty-four thousand, eight hundred one".