6209990 has 8 divisors (see below), whose sum is σ = 11178000. Its totient is φ = 2483992.

The previous prime is 6209989. The next prime is 6210011. The reversal of 6209990 is 999026.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 6209990.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 310490 + ... + 310509.

It is an arithmetic number, because the mean of its divisors is an integer number (1397250).

Almost surely, 2^6209990 is an apocalyptic number.

6209990 is a deficient number, since it is larger than the sum of its proper divisors (4968010).

6209990 is a wasteful number, since it uses less digits than its factorization.

6209990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621006.

The product of its (nonzero) digits is 8748, while the sum is 35.

The square root of 6209990 is about 2491.9851524437. The cubic root of 6209990 is about 183.8076715946.

The spelling of 6209990 in words is "six million, two hundred nine thousand, nine hundred ninety".