20580877 has 8 divisors (see below), whose sum is σ = 21090816. Its totient is φ = 20074032.

The previous prime is 20580853. The next prime is 20580881. The reversal of 20580877 is 77808502.

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

It is a cyclic number.

It is not a de Polignac number, because 20580877 - 2¹¹ = 20578829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20580827) 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, 18108 + ... + 19210.

It is an arithmetic number, because the mean of its divisors is an integer number (2636352).

Almost surely, 2^20580877 is an apocalyptic number.

It is an amenable number.

20580877 is a deficient number, since it is larger than the sum of its proper divisors (509939).

20580877 is a wasteful number, since it uses less digits than its factorization.

20580877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1547.

The product of its (nonzero) digits is 31360, while the sum is 37.

The square root of 20580877 is about 4536.6151478828. The cubic root of 20580877 is about 274.0446275010.

The spelling of 20580877 in words is "twenty million, five hundred eighty thousand, eight hundred seventy-seven".