2865457 has 4 divisors (see below), whose sum is σ = 3274816. Its totient is φ = 2456100.

The previous prime is 2865439. The next prime is 2865463. The reversal of 2865457 is 7545682.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2865457 - 2⁷ = 2865329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2865427) 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, 204669 + ... + 204682.

It is an arithmetic number, because the mean of its divisors is an integer number (818704).

2^2865457 is an apocalyptic number.

It is an amenable number.

2865457 is a deficient number, since it is larger than the sum of its proper divisors (409359).

2865457 is an equidigital number, since it uses as much as digits as its factorization.

2865457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409358.

The product of its digits is 67200, while the sum is 37.

The square root of 2865457 is about 1692.7660795278. The cubic root of 2865457 is about 142.0358469309.

The spelling of 2865457 in words is "two million, eight hundred sixty-five thousand, four hundred fifty-seven".