1447536989 has 8 divisors (see below), whose sum is σ = 1452746688. Its totient is φ = 1442337120.

The previous prime is 1447536967. The next prime is 1447536991. The reversal of 1447536989 is 9896357441.

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

It is a cyclic number.

It is not a de Polignac number, because 1447536989 - 2¹² = 1447532893 is a prime.

It is a super-2 number, since 2×1447536989² = 4190726669046372242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1447536919) 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 7 ways as a sum of consecutive naturals, for example, 403574 + ... + 407144.

It is an arithmetic number, because the mean of its divisors is an integer number (181593336).

Almost surely, 2^1447536989 is an apocalyptic number.

It is an amenable number.

1447536989 is a deficient number, since it is larger than the sum of its proper divisors (5209699).

1447536989 is an equidigital number, since it uses as much as digits as its factorization.

1447536989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4915.

The product of its digits is 6531840, while the sum is 56.

The square root of 1447536989 is about 38046.5108649926. The cubic root of 1447536989 is about 1131.2099679413.

The spelling of 1447536989 in words is "one billion, four hundred forty-seven million, five hundred thirty-six thousand, nine hundred eighty-nine".