2858247 has 30 divisors (see below), whose sum is σ = 4949384. Its totient is φ = 1610280.

The previous prime is 2858243. The next prime is 2858249. The reversal of 2858247 is 7428582.

It is a happy number.

It is not a de Polignac number, because 2858247 - 2² = 2858243 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2858243) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 40222 + ... + 40292.

2^2858247 is an apocalyptic number.

2858247 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

2858247 is a deficient number, since it is larger than the sum of its proper divisors (2091137).

2858247 is an frugal number, since it uses more digits than its factorization.

2858247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161 (or 81 counting only the distinct ones).

The product of its digits is 35840, while the sum is 36.

The square root of 2858247 is about 1690.6350877703. The cubic root of 2858247 is about 141.9166177142.

The spelling of 2858247 in words is "two million, eight hundred fifty-eight thousand, two hundred forty-seven".