18672801 has 32 divisors (see below), whose sum is σ = 30551040. Its totient is φ = 9906624.

The previous prime is 18672799. The next prime is 18672809. The reversal of 18672801 is 10827681.

It is a happy number.

It is not a de Polignac number, because 18672801 - 2¹ = 18672799 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18672809) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20706 + ... + 21588.

It is an arithmetic number, because the mean of its divisors is an integer number (954720).

Almost surely, 2^18672801 is an apocalyptic number.

It is an amenable number.

18672801 is a deficient number, since it is larger than the sum of its proper divisors (11878239).

18672801 is a wasteful number, since it uses less digits than its factorization.

18672801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 965.

The product of its (nonzero) digits is 5376, while the sum is 33.

The square root of 18672801 is about 4321.2036517619. The cubic root of 18672801 is about 265.2995355145.

The spelling of 18672801 in words is "eighteen million, six hundred seventy-two thousand, eight hundred one".