20608377 has 4 divisors (see below), whose sum is σ = 27477840. Its totient is φ = 13738916.

The previous prime is 20608373. The next prime is 20608387. The reversal of 20608377 is 77380602.

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 a cyclic number.

It is not a de Polignac number, because 20608377 - 2² = 20608373 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20608373) 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, 3434727 + ... + 3434732.

It is an arithmetic number, because the mean of its divisors is an integer number (6869460).

Almost surely, 2^20608377 is an apocalyptic number.

It is an amenable number.

20608377 is a deficient number, since it is larger than the sum of its proper divisors (6869463).

20608377 is an equidigital number, since it uses as much as digits as its factorization.

20608377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6869462.

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 20608377 is about 4539.6450301758. The cubic root of 20608377 is about 274.1666319088.

Adding to 20608377 its reverse (77380602), we get a palindrome (97988979).

The spelling of 20608377 in words is "twenty million, six hundred eight thousand, three hundred seventy-seven".