18532706 has 4 divisors (see below), whose sum is σ = 27799062. Its totient is φ = 9266352.

The previous prime is 18532681. The next prime is 18532727. The reversal of 18532706 is 60723581.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60723581 = 4111 ⋅14771.

It can be written as a sum of positive squares in only one way, i.e., 13653025 + 4879681 = 3695^2 + 2209^2 .

It is a super-2 number, since 2×18532706² = 686922383364872, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4633175 + ... + 4633178.

Almost surely, 2^18532706 is an apocalyptic number.

18532706 is a deficient number, since it is larger than the sum of its proper divisors (9266356).

18532706 is an equidigital number, since it uses as much as digits as its factorization.

18532706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9266355.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 18532706 is about 4304.9629498986. The cubic root of 18532706 is about 264.6343884171.

The spelling of 18532706 in words is "eighteen million, five hundred thirty-two thousand, seven hundred six".