3903081 has 48 divisors (see below), whose sum is σ = 7023744. Its totient is φ = 1870848.

The previous prime is 3903073. The next prime is 3903101. The reversal of 3903081 is 1803093.

It is not a de Polignac number, because 3903081 - 2³ = 3903073 is a prime.

It is a super-2 number, since 2×3903081² = 30468082585122, which contains 22 as substring.

It is a Curzon number.

3903081 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3903001) 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 47 ways as a sum of consecutive naturals, for example, 134575 + ... + 134603.

It is an arithmetic number, because the mean of its divisors is an integer number (146328).

Almost surely, 2^3903081 is an apocalyptic number.

It is an amenable number.

3903081 is a deficient number, since it is larger than the sum of its proper divisors (3120663).

3903081 is a wasteful number, since it uses less digits than its factorization.

3903081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98 (or 69 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 3903081 is about 1975.6216743091. The cubic root of 3903081 is about 157.4475310235.

The spelling of 3903081 in words is "three million, nine hundred three thousand, eighty-one".