3405997 has 8 divisors (see below), whose sum is σ = 4097600. Its totient is φ = 2765664.

The previous prime is 3405979. The next prime is 3406003. The reversal of 3405997 is 7995043.

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

It is a cyclic number.

It is not a de Polignac number, because 3405997 - 2¹⁵ = 3373229 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 (3405907) 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, 12672 + ... + 12937.

It is an arithmetic number, because the mean of its divisors is an integer number (512200).

Almost surely, 2^3405997 is an apocalyptic number.

It is an amenable number.

3405997 is a deficient number, since it is larger than the sum of its proper divisors (691603).

3405997 is a wasteful number, since it uses less digits than its factorization.

3405997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25635.

The product of its (nonzero) digits is 34020, while the sum is 37.

The square root of 3405997 is about 1845.5343399677. The cubic root of 3405997 is about 150.4578160894.

The spelling of 3405997 in words is "three million, four hundred five thousand, nine hundred ninety-seven".