20677086 has 32 divisors (see below), whose sum is σ = 46932480. Its totient is φ = 6744888.

The previous prime is 20677067. The next prime is 20677091. The reversal of 20677086 is 68077602.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 20677086.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1536 + ... + 6611.

It is an arithmetic number, because the mean of its divisors is an integer number (1466640).

Almost surely, 2^20677086 is an apocalyptic number.

20677086 is an abundant number, since it is smaller than the sum of its proper divisors (26255394).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20677086 is a wasteful number, since it uses less digits than its factorization.

20677086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8205 (or 8199 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 20677086 is about 4547.2063951398. The cubic root of 20677086 is about 274.4709874082.

The spelling of 20677086 in words is "twenty million, six hundred seventy-seven thousand, eighty-six".