2978313 has 8 divisors (see below), whose sum is σ = 4276608. Its totient is φ = 1832784.

The previous prime is 2978303. The next prime is 2978317. The reversal of 2978313 is 3138792.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2978313 - 2⁹ = 2977801 is a prime.

It is a Curzon number.

2978313 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2978317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38145 + ... + 38222.

It is an arithmetic number, because the mean of its divisors is an integer number (534576).

2^2978313 is an apocalyptic number.

It is an amenable number.

2978313 is a deficient number, since it is larger than the sum of its proper divisors (1298295).

2978313 is a wasteful number, since it uses less digits than its factorization.

2978313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76383.

The product of its digits is 9072, while the sum is 33.

The square root of 2978313 is about 1725.7789545594. The cubic root of 2978313 is about 143.8765821385.

The spelling of 2978313 in words is "two million, nine hundred seventy-eight thousand, three hundred thirteen".