18046723 has 2 divisors, whose sum is σ = 18046724. Its totient is φ = 18046722.

The previous prime is 18046711. The next prime is 18046739. The reversal of 18046723 is 32764081.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18046723 - 2⁹ = 18046211 is a prime.

It is a super-2 number, since 2×18046723² = 651368422077458, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (18046783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9023361 + 9023362.

It is an arithmetic number, because the mean of its divisors is an integer number (9023362).

Almost surely, 2^18046723 is an apocalyptic number.

18046723 is a deficient number, since it is larger than the sum of its proper divisors (1).

18046723 is an equidigital number, since it uses as much as digits as its factorization.

18046723 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 18046723 is about 4248.1434768614. The cubic root of 18046723 is about 262.3007007263.

It can be divided in two parts, 18046 and 723, that added together give a square (18769 = 137²).

The spelling of 18046723 in words is "eighteen million, forty-six thousand, seven hundred twenty-three".