3200991 has 8 divisors (see below), whose sum is σ = 4415280. Its totient is φ = 2060352.

The previous prime is 3200983. The next prime is 3200999. The reversal of 3200991 is 1990023.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3200983) and next prime (3200999).

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

It is not a de Polignac number, because 3200991 - 2³ = 3200983 is a prime.

3200991 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3200999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18310 + ... + 18483.

It is an arithmetic number, because the mean of its divisors is an integer number (551910).

Almost surely, 2^3200991 is an apocalyptic number.

3200991 is a deficient number, since it is larger than the sum of its proper divisors (1214289).

3200991 is a wasteful number, since it uses less digits than its factorization.

3200991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36825.

The product of its (nonzero) digits is 486, while the sum is 24.

The square root of 3200991 is about 1789.1313534786. The cubic root of 3200991 is about 147.3764703556.

The spelling of 3200991 in words is "three million, two hundred thousand, nine hundred ninety-one".