2975905 has 4 divisors (see below), whose sum is σ = 3571092. Its totient is φ = 2380720.

The previous prime is 2975887. The next prime is 2975909. The reversal of 2975905 is 5095792.

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

It can be written as a sum of positive squares in 2 ways, for example, as 312481 + 2663424 = 559^2 + 1632^2 .

It is not a de Polignac number, because 2975905 - 2⁹ = 2975393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2975909) 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, 297586 + ... + 297595.

It is an arithmetic number, because the mean of its divisors is an integer number (892773).

2^2975905 is an apocalyptic number.

It is an amenable number.

2975905 is a deficient number, since it is larger than the sum of its proper divisors (595187).

2975905 is an equidigital number, since it uses as much as digits as its factorization.

2975905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595186.

The product of its (nonzero) digits is 28350, while the sum is 37.

The square root of 2975905 is about 1725.0811575111. The cubic root of 2975905 is about 143.8377963983.

The spelling of 2975905 in words is "two million, nine hundred seventy-five thousand, nine hundred five".