34278427 has 4 divisors (see below), whose sum is σ = 34441096. Its totient is φ = 34115760.

The previous prime is 34278407. The next prime is 34278449. The reversal of 34278427 is 72487243.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72487243 = 661 ⋅109663.

It is a cyclic number.

It is not a de Polignac number, because 34278427 - 2¹¹ = 34276379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34278407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81018 + ... + 81439.

It is an arithmetic number, because the mean of its divisors is an integer number (8610274).

Almost surely, 2^34278427 is an apocalyptic number.

34278427 is a deficient number, since it is larger than the sum of its proper divisors (162669).

34278427 is a wasteful number, since it uses less digits than its factorization.

34278427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162668.

The product of its digits is 75264, while the sum is 37.

The square root of 34278427 is about 5854.7781341397. The cubic root of 34278427 is about 324.8430863827.

The spelling of 34278427 in words is "thirty-four million, two hundred seventy-eight thousand, four hundred twenty-seven".