2978057 has 4 divisors (see below), whose sum is σ = 2982096. Its totient is φ = 2974020.

The previous prime is 2978047. The next prime is 2978071. The reversal of 2978057 is 7508792.

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 2978057 - 2⁸ = 2977801 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2978057.

It is not an unprimeable number, because it can be changed into a prime (2978047) 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, 563 + ... + 2504.

It is an arithmetic number, because the mean of its divisors is an integer number (745524).

2^2978057 is an apocalyptic number.

It is an amenable number.

2978057 is a deficient number, since it is larger than the sum of its proper divisors (4039).

2978057 is an equidigital number, since it uses as much as digits as its factorization.

2978057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4038.

The product of its (nonzero) digits is 35280, while the sum is 38.

The square root of 2978057 is about 1725.7047835595. The cubic root of 2978057 is about 143.8724597309.

The spelling of 2978057 in words is "two million, nine hundred seventy-eight thousand, fifty-seven".