34187427 has 12 divisors (see below), whose sum is σ = 51211160. Its totient is φ = 22791456.

The previous prime is 34187411. The next prime is 34187429. The reversal of 34187427 is 72478143.

It is a happy number.

It is not a de Polignac number, because 34187427 - 2⁴ = 34187411 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 34187391 and 34187400.

It is not an unprimeable number, because it can be changed into a prime (34187429) 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, 70102 + ... + 70587.

Almost surely, 2^34187427 is an apocalyptic number.

34187427 is a deficient number, since it is larger than the sum of its proper divisors (17023733).

34187427 is an equidigital number, since it uses as much as digits as its factorization.

34187427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140704 (or 140692 counting only the distinct ones).

The product of its digits is 37632, while the sum is 36.

The square root of 34187427 is about 5847.0015392507. The cubic root of 34187427 is about 324.5553746382. Note that the first 3 decimals are identical.

The spelling of 34187427 in words is "thirty-four million, one hundred eighty-seven thousand, four hundred twenty-seven".