20364577 has 8 divisors (see below), whose sum is σ = 21030912. Its totient is φ = 19706400.

The previous prime is 20364571. The next prime is 20364649. The reversal of 20364577 is 77546302.

It is a happy number.

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 20364577 - 2³ = 20364569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20364571) 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 7 ways as a sum of consecutive naturals, for example, 3252 + ... + 7162.

It is an arithmetic number, because the mean of its divisors is an integer number (2628864).

Almost surely, 2^20364577 is an apocalyptic number.

It is an amenable number.

20364577 is a deficient number, since it is larger than the sum of its proper divisors (666335).

20364577 is a wasteful number, since it uses less digits than its factorization.

20364577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4079.

The product of its (nonzero) digits is 35280, while the sum is 34.

The square root of 20364577 is about 4512.7128204662. The cubic root of 20364577 is about 273.0811970277.

The spelling of 20364577 in words is "twenty million, three hundred sixty-four thousand, five hundred seventy-seven".