3427139 has 4 divisors (see below), whose sum is σ = 3491856. Its totient is φ = 3362424.

The previous prime is 3427129. The next prime is 3427141. The reversal of 3427139 is 9317243.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3427139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3427129) 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, 32279 + ... + 32384.

It is an arithmetic number, because the mean of its divisors is an integer number (872964).

Almost surely, 2^3427139 is an apocalyptic number.

3427139 is a deficient number, since it is larger than the sum of its proper divisors (64717).

3427139 is an equidigital number, since it uses as much as digits as its factorization.

3427139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64716.

The product of its digits is 4536, while the sum is 29.

The square root of 3427139 is about 1851.2533592137. The cubic root of 3427139 is about 150.7684857701.

The spelling of 3427139 in words is "three million, four hundred twenty-seven thousand, one hundred thirty-nine".