3400661 has 8 divisors (see below), whose sum is σ = 3733344. Its totient is φ = 3071920.

The previous prime is 3400637. The next prime is 3400673. The reversal of 3400661 is 1660043.

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 3400661 - 2⁶ = 3400597 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 (3400681) 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, 1010 + ... + 2796.

It is an arithmetic number, because the mean of its divisors is an integer number (466668).

Almost surely, 2^3400661 is an apocalyptic number.

It is an amenable number.

3400661 is a deficient number, since it is larger than the sum of its proper divisors (332683).

3400661 is a wasteful number, since it uses less digits than its factorization.

3400661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1971.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 3400661 is about 1844.0881215387. The cubic root of 3400661 is about 150.3792035197.

The spelling of 3400661 in words is "three million, four hundred thousand, six hundred sixty-one".