209793996 has 48 divisors (see below), whose sum is σ = 558621280. Its totient is φ = 68040000.

The previous prime is 209793973. The next prime is 209794001. The reversal of 209793996 is 699397902.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22255 + ... + 30246.

Almost surely, 2^209793996 is an apocalyptic number.

It is an amenable number.

209793996 is an abundant number, since it is smaller than the sum of its proper divisors (348827284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

209793996 is a wasteful number, since it uses less digits than its factorization.

209793996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52551 (or 52543 counting only the distinct ones).

The product of its (nonzero) digits is 1653372, while the sum is 54.

The square root of 209793996 is about 14484.2671889192. The cubic root of 209793996 is about 594.1977711006.

The spelling of 209793996 in words is "two hundred nine million, seven hundred ninety-three thousand, nine hundred ninety-six".