3456989 has 4 divisors (see below), whose sum is σ = 3490656. Its totient is φ = 3423324.

The previous prime is 3456979. The next prime is 3457007. The reversal of 3456989 is 9896543.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3456989 - 2¹² = 3452893 is a prime.

It is a super-2 number, since 2×3456989² = 23901545892242, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3456979) 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, 16679 + ... + 16884.

It is an arithmetic number, because the mean of its divisors is an integer number (872664).

Almost surely, 2^3456989 is an apocalyptic number.

It is an amenable number.

3456989 is a deficient number, since it is larger than the sum of its proper divisors (33667).

3456989 is a wasteful number, since it uses less digits than its factorization.

3456989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33666.

The product of its digits is 233280, while the sum is 44.

The square root of 3456989 is about 1859.2979858000. The cubic root of 3456989 is about 151.2049466248.

The spelling of 3456989 in words is "three million, four hundred fifty-six thousand, nine hundred eighty-nine".