20650677 has 4 divisors (see below), whose sum is σ = 27534240. Its totient is φ = 13767116.

The previous prime is 20650667. The next prime is 20650687. The reversal of 20650677 is 77605602.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (20650667) and next prime (20650687).

It is a cyclic number.

It is not a de Polignac number, because 20650677 - 2⁴ = 20650661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20650607) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3441777 + ... + 3441782.

It is an arithmetic number, because the mean of its divisors is an integer number (6883560).

Almost surely, 2^20650677 is an apocalyptic number.

It is an amenable number.

20650677 is a deficient number, since it is larger than the sum of its proper divisors (6883563).

20650677 is an equidigital number, since it uses as much as digits as its factorization.

20650677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6883562.

The product of its (nonzero) digits is 17640, while the sum is 33.

The square root of 20650677 is about 4544.3015965052. The cubic root of 20650677 is about 274.3540851771.

The spelling of 20650677 in words is "twenty million, six hundred fifty thousand, six hundred seventy-seven".