3407861 has 8 divisors (see below), whose sum is σ = 3541248. Its totient is φ = 3276000.

The previous prime is 3407857. The next prime is 3407881. The reversal of 3407861 is 1687043.

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 3407861 - 2² = 3407857 is a prime.

It is a super-2 number, since 2×3407861² = 23227033190642, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3407851) 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, 6281 + ... + 6801.

It is an arithmetic number, because the mean of its divisors is an integer number (442656).

Almost surely, 2^3407861 is an apocalyptic number.

3407861 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

3407861 is a deficient number, since it is larger than the sum of its proper divisors (133387).

3407861 is a wasteful number, since it uses less digits than its factorization.

3407861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 3407861 is about 1846.0392736884. The cubic root of 3407861 is about 150.4852581006.

The spelling of 3407861 in words is "three million, four hundred seven thousand, eight hundred sixty-one".