349075287 has 24 divisors (see below), whose sum is σ = 554037120. Its totient is φ = 210030480.

The previous prime is 349075267. The next prime is 349075289. The reversal of 349075287 is 782570943.

349075287 is a `hidden beast` number, since 34 + 90 + 7 + 528 + 7 = 666.

It is not a de Polignac number, because 349075287 - 2⁸ = 349075031 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349075289) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1078 + ... + 26444.

It is an arithmetic number, because the mean of its divisors is an integer number (23084880).

Almost surely, 2^349075287 is an apocalyptic number.

349075287 is a deficient number, since it is larger than the sum of its proper divisors (204961833).

349075287 is a wasteful number, since it uses less digits than its factorization.

349075287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25523 (or 25520 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The square root of 349075287 is about 18683.5565939679. The cubic root of 349075287 is about 704.1086849839.

The spelling of 349075287 in words is "three hundred forty-nine million, seventy-five thousand, two hundred eighty-seven".