3909471 has 8 divisors (see below), whose sum is σ = 5439360. Its totient is φ = 2492952.

The previous prime is 3909469. The next prime is 3909481. The reversal of 3909471 is 1749093.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3909471 - 2¹ = 3909469 is a prime.

It is a super-3 number, since 3×3909471³ (a number of 21 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3909401) 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, 28261 + ... + 28398.

It is an arithmetic number, because the mean of its divisors is an integer number (679920).

Almost surely, 2^3909471 is an apocalyptic number.

3909471 is a deficient number, since it is larger than the sum of its proper divisors (1529889).

3909471 is a wasteful number, since it uses less digits than its factorization.

3909471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56685.

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 3909471 is about 1977.2382254043. The cubic root of 3909471 is about 157.5334068718.

The spelling of 3909471 in words is "three million, nine hundred nine thousand, four hundred seventy-one".