1497699609 has 64 divisors (see below), whose sum is σ = 2478159360. Its totient is φ = 785203200.

The previous prime is 1497699527. The next prime is 1497699659. The reversal of 1497699609 is 9069967941.

It is not a de Polignac number, because 1497699609 - 2⁸ = 1497699353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1497699659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2631877 + ... + 2632445.

It is an arithmetic number, because the mean of its divisors is an integer number (38721240).

Almost surely, 2^1497699609 is an apocalyptic number.

It is an amenable number.

1497699609 is a deficient number, since it is larger than the sum of its proper divisors (980459751).

1497699609 is a wasteful number, since it uses less digits than its factorization.

1497699609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770.

The product of its (nonzero) digits is 6613488, while the sum is 60.

The square root of 1497699609 is about 38700.1241470877. The cubic root of 1497699609 is about 1144.1287675262.

The spelling of 1497699609 in words is "one billion, four hundred ninety-seven million, six hundred ninety-nine thousand, six hundred nine".