32494721 has 8 divisors (see below), whose sum is σ = 37257984. Its totient is φ = 27761760.

The previous prime is 32494717. The next prime is 32494733. The reversal of 32494721 is 12749423.

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 32494721 - 2² = 32494717 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32494741) 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, 5225 + ... + 9606.

It is an arithmetic number, because the mean of its divisors is an integer number (4657248).

Almost surely, 2^32494721 is an apocalyptic number.

It is an amenable number.

32494721 is a deficient number, since it is larger than the sum of its proper divisors (4763263).

32494721 is a wasteful number, since it uses less digits than its factorization.

32494721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15151.

The product of its digits is 12096, while the sum is 32.

The square root of 32494721 is about 5700.4141077645. The cubic root of 32494721 is about 319.1079354227.

The spelling of 32494721 in words is "thirty-two million, four hundred ninety-four thousand, seven hundred twenty-one".