3901406 has 4 divisors (see below), whose sum is σ = 5852112. Its totient is φ = 1950702.

The previous prime is 3901397. The next prime is 3901411. The reversal of 3901406 is 6041093.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 975350 + ... + 975353.

It is an arithmetic number, because the mean of its divisors is an integer number (1463028).

Almost surely, 2^3901406 is an apocalyptic number.

3901406 is a deficient number, since it is larger than the sum of its proper divisors (1950706).

3901406 is a wasteful number, since it uses less digits than its factorization.

3901406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1950705.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 3901406 is about 1975.1977116228. The cubic root of 3901406 is about 157.4250050285.

Adding to 3901406 its reverse (6041093), we get a palindrome (9942499).

The spelling of 3901406 in words is "three million, nine hundred one thousand, four hundred six".