3901206 has 16 divisors (see below), whose sum is σ = 8013744. Its totient is φ = 1265184.

The previous prime is 3901201. The next prime is 3901217. The reversal of 3901206 is 6021093.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3901201) 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, 8565 + ... + 9008.

It is an arithmetic number, because the mean of its divisors is an integer number (500859).

Almost surely, 2^3901206 is an apocalyptic number.

3901206 is an abundant number, since it is smaller than the sum of its proper divisors (4112538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3901206 is a wasteful number, since it uses less digits than its factorization.

3901206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17615.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 3901206 is about 1975.1470831308. The cubic root of 3901206 is about 157.4223149266.

Adding to 3901206 its reverse (6021093), we get a palindrome (9922299).

It can be divided in two parts, 390 and 1206, that added together give a triangular number (1596 = T₅₆).

The spelling of 3901206 in words is "three million, nine hundred one thousand, two hundred six".