32423681 has 4 divisors (see below), whose sum is σ = 32541012. Its totient is φ = 32306352.

The previous prime is 32423659. The next prime is 32423683. The reversal of 32423681 is 18632423.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18105025 + 14318656 = 4255^2 + 3784^2 .

It is a cyclic number.

It is not a de Polignac number, because 32423681 - 2⁶ = 32423617 is a prime.

It is a super-2 number, since 2×32423681² = 2102590179179522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32423683) 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, 58250 + ... + 58803.

It is an arithmetic number, because the mean of its divisors is an integer number (8135253).

Almost surely, 2^32423681 is an apocalyptic number.

It is an amenable number.

32423681 is a deficient number, since it is larger than the sum of its proper divisors (117331).

32423681 is a wasteful number, since it uses less digits than its factorization.

32423681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117330.

The product of its digits is 6912, while the sum is 29.

The square root of 32423681 is about 5694.1795721596. The cubic root of 32423681 is about 318.8752210298.

The spelling of 32423681 in words is "thirty-two million, four hundred twenty-three thousand, six hundred eighty-one".