3436991 has 4 divisors (see below), whose sum is σ = 3457032. Its totient is φ = 3416952.

The previous prime is 3436987. The next prime is 3437017. The reversal of 3436991 is 1996343.

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

It is a cyclic number.

It is not a de Polignac number, because 3436991 - 2² = 3436987 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3436921) 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, 9761 + ... + 10106.

It is an arithmetic number, because the mean of its divisors is an integer number (864258).

Almost surely, 2^3436991 is an apocalyptic number.

3436991 is a deficient number, since it is larger than the sum of its proper divisors (20041).

3436991 is a wasteful number, since it uses less digits than its factorization.

3436991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20040.

The product of its digits is 17496, while the sum is 35.

The square root of 3436991 is about 1853.9123496002. The cubic root of 3436991 is about 150.9128189937.

The spelling of 3436991 in words is "three million, four hundred thirty-six thousand, nine hundred ninety-one".