32447489 has 4 divisors (see below), whose sum is σ = 32464560. Its totient is φ = 32430420.

The previous prime is 32447477. The next prime is 32447507. The reversal of 32447489 is 98474423.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 98474423 = 829 ⋅118787.

It is a cyclic number.

It is not a de Polignac number, because 32447489 - 2⁴ = 32447473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32447449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5267 + ... + 9624.

It is an arithmetic number, because the mean of its divisors is an integer number (8116140).

Almost surely, 2^32447489 is an apocalyptic number.

It is an amenable number.

32447489 is a deficient number, since it is larger than the sum of its proper divisors (17071).

32447489 is a wasteful number, since it uses less digits than its factorization.

32447489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17070.

The product of its digits is 193536, while the sum is 41.

The square root of 32447489 is about 5696.2697443151. The cubic root of 32447489 is about 318.9532496355.

The spelling of 32447489 in words is "thirty-two million, four hundred forty-seven thousand, four hundred eighty-nine".