2978741 has 4 divisors (see below), whose sum is σ = 3012300. Its totient is φ = 2945184.

The previous prime is 2978737. The next prime is 2978749. The reversal of 2978741 is 1478792.

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 758641 + 2220100 = 871^2 + 1490^2 .

It is a cyclic number.

It is not a de Polignac number, because 2978741 - 2² = 2978737 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2978695 and 2978704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2978749) 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, 16646 + ... + 16823.

It is an arithmetic number, because the mean of its divisors is an integer number (753075).

2^2978741 is an apocalyptic number.

It is an amenable number.

2978741 is a deficient number, since it is larger than the sum of its proper divisors (33559).

2978741 is an equidigital number, since it uses as much as digits as its factorization.

2978741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33558.

The product of its digits is 28224, while the sum is 38.

The square root of 2978741 is about 1725.9029520804. The cubic root of 2978741 is about 143.8834737611.

The spelling of 2978741 in words is "two million, nine hundred seventy-eight thousand, seven hundred forty-one".