20027678 has 12 divisors (see below), whose sum is σ = 33021240. Its totient is φ = 9103380.

The previous prime is 20027677. The next prime is 20027699. The reversal of 20027678 is 87672002.

It is a super-2 number, since 2×20027678² = 802215772143368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20027671) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 41138 + ... + 41621.

It is an arithmetic number, because the mean of its divisors is an integer number (2751770).

Almost surely, 2^20027678 is an apocalyptic number.

20027678 is a deficient number, since it is larger than the sum of its proper divisors (12993562).

20027678 is a wasteful number, since it uses less digits than its factorization.

20027678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82783 (or 82772 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 20027678 is about 4475.2293795961. The cubic root of 20027678 is about 271.5669200263.

The spelling of 20027678 in words is "twenty million, twenty-seven thousand, six hundred seventy-eight".