2870347 has 4 divisors (see below), whose sum is σ = 2913256. Its totient is φ = 2827440.

The previous prime is 2870323. The next prime is 2870353. The reversal of 2870347 is 7430782.

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-2870347 is a prime.

It is a Duffinian number.

2870347 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2870047) 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, 21354 + ... + 21487.

It is an arithmetic number, because the mean of its divisors is an integer number (728314).

2^2870347 is an apocalyptic number.

2870347 is a deficient number, since it is larger than the sum of its proper divisors (42909).

2870347 is an equidigital number, since it uses as much as digits as its factorization.

2870347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42908.

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 2870347 is about 1694.2098453261. The cubic root of 2870347 is about 142.1165973512.

The spelling of 2870347 in words is "two million, eight hundred seventy thousand, three hundred forty-seven".