20852477 has 8 divisors (see below), whose sum is σ = 21682752. Its totient is φ = 20037600.

The previous prime is 20852473. The next prime is 20852501. The reversal of 20852477 is 77425802.

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 20852477 - 2² = 20852473 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20852471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1049 + ... + 6542.

It is an arithmetic number, because the mean of its divisors is an integer number (2710344).

Almost surely, 2^20852477 is an apocalyptic number.

It is an amenable number.

20852477 is a deficient number, since it is larger than the sum of its proper divisors (830275).

20852477 is an equidigital number, since it uses as much as digits as its factorization.

20852477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7699.

The product of its (nonzero) digits is 31360, while the sum is 35.

The square root of 20852477 is about 4566.4512479605. The cubic root of 20852477 is about 275.2448595986.

The spelling of 20852477 in words is "twenty million, eight hundred fifty-two thousand, four hundred seventy-seven".