3494872191 has 4 divisors (see below), whose sum is σ = 4659829592. Its totient is φ = 2329914792.

The previous prime is 3494872181. The next prime is 3494872193. The reversal of 3494872191 is 1912784943.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 3494872191 - 2⁶ = 3494872127 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3494872191.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3494872193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 582478696 + ... + 582478701.

It is an arithmetic number, because the mean of its divisors is an integer number (1164957398).

Almost surely, 2^3494872191 is an apocalyptic number.

3494872191 is a deficient number, since it is larger than the sum of its proper divisors (1164957401).

3494872191 is a wasteful number, since it uses less digits than its factorization.

3494872191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1164957400.

The product of its digits is 435456, while the sum is 48.

The square root of 3494872191 is about 59117.4440499587. Note that the first 3 decimals coincide. The cubic root of 3494872191 is about 1517.5526450438.

The spelling of 3494872191 in words is "three billion, four hundred ninety-four million, eight hundred seventy-two thousand, one hundred ninety-one".