3670421 has 4 divisors (see below), whose sum is σ = 3704832. Its totient is φ = 3636012.

The previous prime is 3670417. The next prime is 3670423. The reversal of 3670421 is 1240763.

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 3670421 - 2² = 3670417 is a prime.

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 (3670423) 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, 17045 + ... + 17258.

It is an arithmetic number, because the mean of its divisors is an integer number (926208).

Almost surely, 2^3670421 is an apocalyptic number.

It is an amenable number.

3670421 is a deficient number, since it is larger than the sum of its proper divisors (34411).

3670421 is a wasteful number, since it uses less digits than its factorization.

3670421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34410.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 3670421 is about 1915.8342830214. The cubic root of 3670421 is about 154.2547786872.

The spelling of 3670421 in words is "three million, six hundred seventy thousand, four hundred twenty-one".