20076681 has 8 divisors (see below), whose sum is σ = 27492544. Its totient is φ = 13022640.

The previous prime is 20076611. The next prime is 20076691. The reversal of 20076681 is 18667002.

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 20076681 - 2¹⁴ = 20060297 is a prime.

It is a super-2 number, since 2×20076681² = 806146239951522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20076611) 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, 90325 + ... + 90546.

It is an arithmetic number, because the mean of its divisors is an integer number (3436568).

Almost surely, 2^20076681 is an apocalyptic number.

It is an amenable number.

20076681 is a deficient number, since it is larger than the sum of its proper divisors (7415863).

20076681 is a wasteful number, since it uses less digits than its factorization.

20076681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180911.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 20076681 is about 4480.7009496283. The cubic root of 20076681 is about 271.7882263438.

The spelling of 20076681 in words is "twenty million, seventy-six thousand, six hundred eighty-one".