1497728443 has 8 divisors (see below), whose sum is σ = 1523643408. Its totient is φ = 1472001024.

The previous prime is 1497728437. The next prime is 1497728563. The reversal of 1497728443 is 3448277941.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1497728443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1497728413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30730 + ... + 62767.

It is an arithmetic number, because the mean of its divisors is an integer number (190455426).

Almost surely, 2^1497728443 is an apocalyptic number.

1497728443 is a deficient number, since it is larger than the sum of its proper divisors (25914965).

1497728443 is an equidigital number, since it uses as much as digits as its factorization.

1497728443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93773.

The product of its digits is 1354752, while the sum is 49.

The square root of 1497728443 is about 38700.4966763994. The cubic root of 1497728443 is about 1144.1361098079.

The spelling of 1497728443 in words is "one billion, four hundred ninety-seven million, seven hundred twenty-eight thousand, four hundred forty-three".