20368677 has 24 divisors (see below), whose sum is σ = 31868608. Its totient is φ = 11335680.

The previous prime is 20368661. The next prime is 20368723. The reversal of 20368677 is 77686302.

It is not a de Polignac number, because 20368677 - 2⁴ = 20368661 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20368637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35013 + ... + 35589.

Almost surely, 2^20368677 is an apocalyptic number.

It is an amenable number.

20368677 is a deficient number, since it is larger than the sum of its proper divisors (11499931).

20368677 is an equidigital number, since it uses as much as digits as its factorization.

20368677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 669 (or 628 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 39.

The square root of 20368677 is about 4513.1670698081. The cubic root of 20368677 is about 273.0995222758.

The spelling of 20368677 in words is "twenty million, three hundred sixty-eight thousand, six hundred seventy-seven".