3670857 has 12 divisors (see below), whose sum is σ = 5581680. Its totient is φ = 2318328.

The previous prime is 3670837. The next prime is 3670871. The reversal of 3670857 is 7580763.

It is not a de Polignac number, because 3670857 - 2¹⁰ = 3669833 is a prime.

It is a super-2 number, since 2×3670857² = 26950382228898, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

3670857 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3670837) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10563 + ... + 10904.

It is an arithmetic number, because the mean of its divisors is an integer number (465140).

Almost surely, 2^3670857 is an apocalyptic number.

It is an amenable number.

3670857 is a deficient number, since it is larger than the sum of its proper divisors (1910823).

3670857 is a wasteful number, since it uses less digits than its factorization.

3670857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21492 (or 21489 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 3670857 is about 1915.9480681897. The cubic root of 3670857 is about 154.2608862900.

The spelling of 3670857 in words is "three million, six hundred seventy thousand, eight hundred fifty-seven".