32720423 has 8 divisors (see below), whose sum is σ = 33038928. Its totient is φ = 32403904.

The previous prime is 32720417. The next prime is 32720437. The reversal of 32720423 is 32402723.

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 32720423 - 2¹⁰ = 32719399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32720453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73640 + ... + 74082.

It is an arithmetic number, because the mean of its divisors is an integer number (4129866).

Almost surely, 2^32720423 is an apocalyptic number.

32720423 is a deficient number, since it is larger than the sum of its proper divisors (318505).

32720423 is a wasteful number, since it uses less digits than its factorization.

32720423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 993.

The product of its (nonzero) digits is 2016, while the sum is 23.

The square root of 32720423 is about 5720.1768329310. The cubic root of 32720423 is about 319.8450519374.

The spelling of 32720423 in words is "thirty-two million, seven hundred twenty thousand, four hundred twenty-three".