3097728445 has 32 divisors (see below), whose sum is σ = 4280728320. Its totient is φ = 2108021760.

The previous prime is 3097728419. The next prime is 3097728449. The reversal of 3097728445 is 5448277903.

It is a happy number.

It is not a de Polignac number, because 3097728445 - 2²⁷ = 2963510717 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3097728449) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3736291 + ... + 3737119.

It is an arithmetic number, because the mean of its divisors is an integer number (133772760).

Almost surely, 2^3097728445 is an apocalyptic number.

3097728445 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3097728445 is a deficient number, since it is larger than the sum of its proper divisors (1182999875).

3097728445 is a wasteful number, since it uses less digits than its factorization.

3097728445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1525.

The product of its (nonzero) digits is 1693440, while the sum is 49.

The square root of 3097728445 is about 55657.2407239166. The cubic root of 3097728445 is about 1457.7435032376.

The spelling of 3097728445 in words is "three billion, ninety-seven million, seven hundred twenty-eight thousand, four hundred forty-five".