18673461 has 12 divisors (see below), whose sum is σ = 27038700. Its totient is φ = 12418560.

The previous prime is 18673411. The next prime is 18673469. The reversal of 18673461 is 16437681.

It can be written as a sum of positive squares in 2 ways, for example, as 9180900 + 9492561 = 3030^2 + 3081^2 .

It is not a de Polignac number, because 18673461 - 2⁶ = 18673397 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18673469) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1731 + ... + 6351.

It is an arithmetic number, because the mean of its divisors is an integer number (2253225).

Almost surely, 2^18673461 is an apocalyptic number.

It is an amenable number.

18673461 is a deficient number, since it is larger than the sum of its proper divisors (8365239).

18673461 is a wasteful number, since it uses less digits than its factorization.

18673461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5076 (or 5073 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 18673461 is about 4321.2800186982. The cubic root of 18673461 is about 265.3026611950.

The spelling of 18673461 in words is "eighteen million, six hundred seventy-three thousand, four hundred sixty-one".