3706857 has 32 divisors (see below), whose sum is σ = 6850560. Its totient is φ = 1924560.

The previous prime is 3706837. The next prime is 3706861. The reversal of 3706857 is 7586073.

It is not a de Polignac number, because 3706857 - 2¹⁴ = 3690473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3706817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1188 + ... + 2970.

It is an arithmetic number, because the mean of its divisors is an integer number (214080).

Almost surely, 2^3706857 is an apocalyptic number.

It is an amenable number.

3706857 is a deficient number, since it is larger than the sum of its proper divisors (3143703).

3706857 is a wasteful number, since it uses less digits than its factorization.

3706857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1810 (or 1804 counting only the distinct ones).

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

The square root of 3706857 is about 1925.3199734070. The cubic root of 3706857 is about 154.7635242464.

It can be divided in two parts, 370 and 6857, that added together give a palindrome (7227).

The spelling of 3706857 in words is "three million, seven hundred six thousand, eight hundred fifty-seven".