34129287 has 12 divisors (see below), whose sum is σ = 49359024. Its totient is φ = 22724640.

The previous prime is 34129279. The next prime is 34129327. The reversal of 34129287 is 78292143.

It is not a de Polignac number, because 34129287 - 2³ = 34129279 is a prime.

It is a super-2 number, since 2×34129287² = 2329616462256738, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34129687) 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, 7462 + ... + 11132.

It is an arithmetic number, because the mean of its divisors is an integer number (4113252).

Almost surely, 2^34129287 is an apocalyptic number.

34129287 is a deficient number, since it is larger than the sum of its proper divisors (15229737).

34129287 is a wasteful number, since it uses less digits than its factorization.

34129287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4710 (or 4707 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 34129287 is about 5842.0276445768. The cubic root of 34129287 is about 324.3712878945.

The spelling of 34129287 in words is "thirty-four million, one hundred twenty-nine thousand, two hundred eighty-seven".