3421399091 has 12 divisors (see below), whose sum is σ = 3865588584. Its totient is φ = 3003100800.

The previous prime is 3421399087. The next prime is 3421399099. The reversal of 3421399091 is 1909931243.

It is not a de Polignac number, because 3421399091 - 2² = 3421399087 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3421399099) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 175670 + ... + 194171.

It is an arithmetic number, because the mean of its divisors is an integer number (322132382).

Almost surely, 2^3421399091 is an apocalyptic number.

3421399091 is a deficient number, since it is larger than the sum of its proper divisors (444189493).

3421399091 is a wasteful number, since it uses less digits than its factorization.

3421399091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369910 (or 369881 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 41.

The square root of 3421399091 is about 58492.7268213750. The cubic root of 3421399091 is about 1506.8426771222.

The spelling of 3421399091 in words is "three billion, four hundred twenty-one million, three hundred ninety-nine thousand, ninety-one".