3670861 has 8 divisors (see below), whose sum is σ = 3911544. Its totient is φ = 3432960.

The previous prime is 3670837. The next prime is 3670871. The reversal of 3670861 is 1680763.

It can be written as a sum of positive squares in 4 ways, for example, as 155236 + 3515625 = 394^2 + 1875^2 .

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 3670861 - 2⁹ = 3670349 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3670871) 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, 2481 + ... + 3673.

It is an arithmetic number, because the mean of its divisors is an integer number (488943).

Almost surely, 2^3670861 is an apocalyptic number.

It is an amenable number.

3670861 is a deficient number, since it is larger than the sum of its proper divisors (240683).

3670861 is a wasteful number, since it uses less digits than its factorization.

3670861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1391.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 3670861 is about 1915.9491120591. The cubic root of 3670861 is about 154.2609423208.

The spelling of 3670861 in words is "three million, six hundred seventy thousand, eight hundred sixty-one".