2978386323 has 12 divisors (see below), whose sum is σ = 4365018504. Its totient is φ = 1805082400.

The previous prime is 2978386297. The next prime is 2978386351. The reversal of 2978386323 is 3236838792.

It is a happy number.

It is not a de Polignac number, because 2978386323 - 2⁶ = 2978386259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2978381323) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4102098 + ... + 4102823.

It is an arithmetic number, because the mean of its divisors is an integer number (363751542).

Almost surely, 2^2978386323 is an apocalyptic number.

2978386323 is a deficient number, since it is larger than the sum of its proper divisors (1386632181).

2978386323 is a wasteful number, since it uses less digits than its factorization.

2978386323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8204946 (or 8204935 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 51.

The square root of 2978386323 is about 54574.5941166767. The cubic root of 2978386323 is about 1438.7776282655. Note that the first 3 decimals are identical.

The spelling of 2978386323 in words is "two billion, nine hundred seventy-eight million, three hundred eighty-six thousand, three hundred twenty-three".