2757945 has 16 divisors (see below), whose sum is σ = 4645440. Its totient is φ = 1393344.

The previous prime is 2757917. The next prime is 2758003. The reversal of 2757945 is 5497572.

It is not a de Polignac number, because 2757945 - 2⁷ = 2757817 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4554 + ... + 5123.

It is an arithmetic number, because the mean of its divisors is an integer number (290340).

2^2757945 is an apocalyptic number.

It is an amenable number.

2757945 is a deficient number, since it is larger than the sum of its proper divisors (1887495).

2757945 is a wasteful number, since it uses less digits than its factorization.

2757945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9704.

The product of its digits is 88200, while the sum is 39.

The square root of 2757945 is about 1660.7061750954. The cubic root of 2757945 is about 140.2367592458.

The spelling of 2757945 in words is "two million, seven hundred fifty-seven thousand, nine hundred forty-five".