32748691 has 4 divisors (see below), whose sum is σ = 32811832. Its totient is φ = 32685552.

The previous prime is 32748641. The next prime is 32748701. The reversal of 32748691 is 19684723.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19684723 = 2221 ⋅8863.

It is a cyclic number.

It is not a de Polignac number, because 32748691 - 2¹⁵ = 32715923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32748631) 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, 30786 + ... + 31831.

It is an arithmetic number, because the mean of its divisors is an integer number (8202958).

Almost surely, 2^32748691 is an apocalyptic number.

32748691 is a deficient number, since it is larger than the sum of its proper divisors (63141).

32748691 is an equidigital number, since it uses as much as digits as its factorization.

32748691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63140.

The product of its digits is 72576, while the sum is 40.

The square root of 32748691 is about 5722.6472021260. The cubic root of 32748691 is about 319.9371328322.

The spelling of 32748691 in words is "thirty-two million, seven hundred forty-eight thousand, six hundred ninety-one".