32643497 has 4 divisors (see below), whose sum is σ = 32892816. Its totient is φ = 32394180.

The previous prime is 32643487. The next prime is 32643529. The reversal of 32643497 is 79434623.

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.

It is a cyclic number.

It is not a de Polignac number, because 32643497 - 2⁶ = 32643433 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 32643497.

It is not an unprimeable number, because it can be changed into a prime (32643487) 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 3 ways as a sum of consecutive naturals, for example, 124463 + ... + 124724.

It is an arithmetic number, because the mean of its divisors is an integer number (8223204).

Almost surely, 2^32643497 is an apocalyptic number.

It is an amenable number.

32643497 is a deficient number, since it is larger than the sum of its proper divisors (249319).

32643497 is a wasteful number, since it uses less digits than its factorization.

32643497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249318.

The product of its digits is 108864, while the sum is 38.

The square root of 32643497 is about 5713.4487833532. The cubic root of 32643497 is about 319.5942024154.

The spelling of 32643497 in words is "thirty-two million, six hundred forty-three thousand, four hundred ninety-seven".