32913993 has 8 divisors (see below), whose sum is σ = 50154688. Its totient is φ = 18807984.

The previous prime is 32913973. The next prime is 32913997. The reversal of 32913993 is 39931923.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 32913993 - 2⁶ = 32913929 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (32913997) 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, 783646 + ... + 783687.

It is an arithmetic number, because the mean of its divisors is an integer number (6269336).

Almost surely, 2^32913993 is an apocalyptic number.

It is an amenable number.

32913993 is a deficient number, since it is larger than the sum of its proper divisors (17240695).

32913993 is a wasteful number, since it uses less digits than its factorization.

32913993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1567343.

The product of its digits is 39366, while the sum is 39.

The square root of 32913993 is about 5737.0718140877. The cubic root of 32913993 is about 320.4745335882.

The spelling of 32913993 in words is "thirty-two million, nine hundred thirteen thousand, nine hundred ninety-three".