3891269 has 8 divisors (see below), whose sum is σ = 4027968. Its totient is φ = 3756640.

The previous prime is 3891263. The next prime is 3891287. The reversal of 3891269 is 9621983.

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 3891269 - 2¹² = 3887173 is a prime.

It is a super-2 number, since 2×3891269² = 30283948860722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3891263) 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, 3944 + ... + 4830.

It is an arithmetic number, because the mean of its divisors is an integer number (503496).

Almost surely, 2^3891269 is an apocalyptic number.

It is an amenable number.

3891269 is a deficient number, since it is larger than the sum of its proper divisors (136699).

3891269 is a wasteful number, since it uses less digits than its factorization.

3891269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1035.

The product of its digits is 23328, while the sum is 38.

The square root of 3891269 is about 1972.6299703695. The cubic root of 3891269 is about 157.2885412845.

The spelling of 3891269 in words is "three million, eight hundred ninety-one thousand, two hundred sixty-nine".