2974857 has 4 divisors (see below), whose sum is σ = 3966480. Its totient is φ = 1983236.

The previous prime is 2974819. The next prime is 2974859. The reversal of 2974857 is 7584792.

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 2974857 - 2¹⁰ = 2973833 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (2974859) 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, 495807 + ... + 495812.

It is an arithmetic number, because the mean of its divisors is an integer number (991620).

2^2974857 is an apocalyptic number.

It is an amenable number.

2974857 is a deficient number, since it is larger than the sum of its proper divisors (991623).

2974857 is an equidigital number, since it uses as much as digits as its factorization.

2974857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991622.

The product of its digits is 141120, while the sum is 42.

The square root of 2974857 is about 1724.7773769388. Note that the first 3 decimals coincide. The cubic root of 2974857 is about 143.8209096911.

The spelling of 2974857 in words is "two million, nine hundred seventy-four thousand, eight hundred fifty-seven".