20823377 has 8 divisors (see below), whose sum is σ = 21321792. Its totient is φ = 20330800.

The previous prime is 20823359. The next prime is 20823409. The reversal of 20823377 is 77332802.

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 20823377 - 2¹⁰ = 20822353 is a prime.

It is a super-2 number, since 2×20823377² = 867226059368258, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (20823307) 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, 6227 + ... + 8967.

It is an arithmetic number, because the mean of its divisors is an integer number (2665224).

Almost surely, 2^20823377 is an apocalyptic number.

It is an amenable number.

20823377 is a deficient number, since it is larger than the sum of its proper divisors (498415).

20823377 is a wasteful number, since it uses less digits than its factorization.

20823377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2919.

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 20823377 is about 4563.2638538660. The cubic root of 20823377 is about 275.1167636389.

The spelling of 20823377 in words is "twenty million, eight hundred twenty-three thousand, three hundred seventy-seven".