19920933 has 12 divisors (see below), whose sum is σ = 28880748. Its totient is φ = 13231680.

The previous prime is 19920919. The next prime is 19920947. The reversal of 19920933 is 33902991.

It is an interprime number because it is at equal distance from previous prime (19920919) and next prime (19920947).

It can be written as a sum of positive squares in 2 ways, for example, as 7935489 + 11985444 = 2817^2 + 3462^2 .

It is not a de Polignac number, because 19920933 - 2⁴ = 19920917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19920973) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1410 + ... + 6467.

It is an arithmetic number, because the mean of its divisors is an integer number (2406729).

Almost surely, 2^19920933 is an apocalyptic number.

It is an amenable number.

19920933 is a deficient number, since it is larger than the sum of its proper divisors (8959815).

19920933 is a wasteful number, since it uses less digits than its factorization.

19920933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8164 (or 8161 counting only the distinct ones).

The product of its (nonzero) digits is 13122, while the sum is 36.

The square root of 19920933 is about 4463.2872414847. The cubic root of 19920933 is about 271.0835878190.

The spelling of 19920933 in words is "nineteen million, nine hundred twenty thousand, nine hundred thirty-three".