1497007989 has 6 divisors (see below), whose sum is σ = 2162344886. Its totient is φ = 998005320.

The previous prime is 1497007979. The next prime is 1497008017. The reversal of 1497007989 is 9897007941.

1497007989 is a `hidden beast` number, since 1 + 497 + 0 + 0 + 79 + 89 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1435652100 + 61355889 = 37890^2 + 7833^2 .

It is not a de Polignac number, because 1497007989 - 2⁵ = 1497007957 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 (1497007909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 83167102 + ... + 83167119.

Almost surely, 2^1497007989 is an apocalyptic number.

It is an amenable number.

1497007989 is a deficient number, since it is larger than the sum of its proper divisors (665336897).

1497007989 is a wasteful number, since it uses less digits than its factorization.

1497007989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166334227 (or 166334224 counting only the distinct ones).

The product of its (nonzero) digits is 1143072, while the sum is 54.

The square root of 1497007989 is about 38691.1874850075. The cubic root of 1497007989 is about 1143.9526253570.

The spelling of 1497007989 in words is "one billion, four hundred ninety-seven million, seven thousand, nine hundred eighty-nine".