20541677 has 8 divisors (see below), whose sum is σ = 22198176. Its totient is φ = 18896112.

The previous prime is 20541671. The next prime is 20541701. The reversal of 20541677 is 77614502.

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 20541677 - 2⁶ = 20541613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20541671) 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, 1418 + ... + 6564.

It is an arithmetic number, because the mean of its divisors is an integer number (2774772).

Almost surely, 2^20541677 is an apocalyptic number.

It is an amenable number.

20541677 is a deficient number, since it is larger than the sum of its proper divisors (1656499).

20541677 is a wasteful number, since it uses less digits than its factorization.

20541677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5467.

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 20541677 is about 4532.2926869301. The cubic root of 20541677 is about 273.8705277449.

The spelling of 20541677 in words is "twenty million, five hundred forty-one thousand, six hundred seventy-seven".