34387287 has 8 divisors (see below), whose sum is σ = 50017920. Its totient is φ = 20840760.

The previous prime is 34387273. The next prime is 34387291. The reversal of 34387287 is 78278343.

34387287 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 34387287 - 2⁷ = 34387159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34387237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 520987 + ... + 521052.

It is an arithmetic number, because the mean of its divisors is an integer number (6252240).

Almost surely, 2^34387287 is an apocalyptic number.

34387287 is a deficient number, since it is larger than the sum of its proper divisors (15630633).

34387287 is a wasteful number, since it uses less digits than its factorization.

34387287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1042053.

The product of its digits is 225792, while the sum is 42.

The square root of 34387287 is about 5864.0674450419. The cubic root of 34387287 is about 325.1865973819.

The spelling of 34387287 in words is "thirty-four million, three hundred eighty-seven thousand, two hundred eighty-seven".