2978983 has 8 divisors (see below), whose sum is σ = 3552768. Its totient is φ = 2442264.

The previous prime is 2978977. The next prime is 2978999. The reversal of 2978983 is 3898792.

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

It is a cyclic number.

It is not a de Polignac number, because 2978983 - 2¹³ = 2970791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2978923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9091 + ... + 9412.

It is an arithmetic number, because the mean of its divisors is an integer number (444096).

2^2978983 is an apocalyptic number.

2978983 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2978983 is a deficient number, since it is larger than the sum of its proper divisors (573785).

2978983 is a wasteful number, since it uses less digits than its factorization.

2978983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18533.

The product of its digits is 217728, while the sum is 46.

The square root of 2978983 is about 1725.9730588859. The cubic root of 2978983 is about 143.8873701340.

The spelling of 2978983 in words is "two million, nine hundred seventy-eight thousand, nine hundred eighty-three".