3901687 has 8 divisors (see below), whose sum is σ = 4243536. Its totient is φ = 3572352.

The previous prime is 3901679. The next prime is 3901693. The reversal of 3901687 is 7861093.

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 3901687 - 2³ = 3901679 is a prime.

It is a super-3 number, since 3×3901687³ (a number of 21 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

3901687 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3901657) 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, 2473 + ... + 3730.

It is an arithmetic number, because the mean of its divisors is an integer number (530442).

Almost surely, 2^3901687 is an apocalyptic number.

3901687 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

3901687 is a deficient number, since it is larger than the sum of its proper divisors (341849).

3901687 is a wasteful number, since it uses less digits than its factorization.

3901687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6257.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 3901687 is about 1975.2688424617. The cubic root of 3901687 is about 157.4287844664.

The spelling of 3901687 in words is "three million, nine hundred one thousand, six hundred eighty-seven".