2728195237 has 4 divisors (see below), whose sum is σ = 2871784480. Its totient is φ = 2584605996.

The previous prime is 2728195219. The next prime is 2728195247. The reversal of 2728195237 is 7325918272.

2728195237 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2728195237 - 2¹⁵ = 2728162469 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 (2728195247) 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, 71794593 + ... + 71794630.

It is an arithmetic number, because the mean of its divisors is an integer number (717946120).

Almost surely, 2^2728195237 is an apocalyptic number.

It is an amenable number.

2728195237 is a deficient number, since it is larger than the sum of its proper divisors (143589243).

2728195237 is a wasteful number, since it uses less digits than its factorization.

2728195237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143589242.

The product of its digits is 423360, while the sum is 46.

The square root of 2728195237 is about 52232.1283981421. The cubic root of 2728195237 is about 1397.3069380415.

The spelling of 2728195237 in words is "two billion, seven hundred twenty-eight million, one hundred ninety-five thousand, two hundred thirty-seven".