2978212237 has 16 divisors (see below), whose sum is σ = 3998719872. Its totient is φ = 2142169920.

The previous prime is 2978212189. The next prime is 2978212241. The reversal of 2978212237 is 7322128792.

2978212237 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2978212237 - 2¹¹ = 2978210189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2978212193 and 2978212202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2978212267) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1486618 + ... + 1488619.

It is an arithmetic number, because the mean of its divisors is an integer number (249919992).

Almost surely, 2^2978212237 is an apocalyptic number.

It is an amenable number.

2978212237 is a deficient number, since it is larger than the sum of its proper divisors (1020507635).

2978212237 is a wasteful number, since it uses less digits than its factorization.

2978212237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2975268.

The product of its digits is 169344, while the sum is 43.

The square root of 2978212237 is about 54572.9991570923. Note that the first 3 decimals coincide. The cubic root of 2978212237 is about 1438.7495956448.

The spelling of 2978212237 in words is "two billion, nine hundred seventy-eight million, two hundred twelve thousand, two hundred thirty-seven".