20835373 has 4 divisors (see below), whose sum is σ = 22438108. Its totient is φ = 19232640.

The previous prime is 20835359. The next prime is 20835389. The reversal of 20835373 is 37353802.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10220809 + 10614564 = 3197^2 + 3258^2 .

It is a cyclic number.

It is not a de Polignac number, because 20835373 - 2⁹ = 20834861 is a prime.

It is a super-2 number, since 2×20835373² = 868225536098258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20830373) 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, 801348 + ... + 801373.

It is an arithmetic number, because the mean of its divisors is an integer number (5609527).

Almost surely, 2^20835373 is an apocalyptic number.

It is an amenable number.

20835373 is a deficient number, since it is larger than the sum of its proper divisors (1602735).

20835373 is a wasteful number, since it uses less digits than its factorization.

20835373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1602734.

The product of its (nonzero) digits is 15120, while the sum is 31.

The square root of 20835373 is about 4564.5780746965. The cubic root of 20835373 is about 275.1695835561.

The spelling of 20835373 in words is "twenty million, eight hundred thirty-five thousand, three hundred seventy-three".