18682071 has 8 divisors (see below), whose sum is σ = 25156464. Its totient is φ = 12331200.

The previous prime is 18682063. The next prime is 18682091. The reversal of 18682071 is 17028681.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 18682071 - 2³ = 18682063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18682091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30526 + ... + 31131.

It is an arithmetic number, because the mean of its divisors is an integer number (3144558).

Almost surely, 2^18682071 is an apocalyptic number.

18682071 is a deficient number, since it is larger than the sum of its proper divisors (6474393).

18682071 is a wasteful number, since it uses less digits than its factorization.

18682071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61761.

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

The square root of 18682071 is about 4322.2761364818. The cubic root of 18682071 is about 265.3434303723.

The spelling of 18682071 in words is "eighteen million, six hundred eighty-two thousand, seventy-one".