32412821 has 8 divisors (see below), whose sum is σ = 37460160. Its totient is φ = 27469728.

The previous prime is 32412811. The next prime is 32412823. The reversal of 32412821 is 12821423.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32412821 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 (32412823) 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, 25391 + ... + 26636.

It is an arithmetic number, because the mean of its divisors is an integer number (4682520).

Almost surely, 2^32412821 is an apocalyptic number.

It is an amenable number.

32412821 is a deficient number, since it is larger than the sum of its proper divisors (5047339).

32412821 is an equidigital number, since it uses as much as digits as its factorization.

32412821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52123.

The product of its digits is 768, while the sum is 23.

The square root of 32412821 is about 5693.2258869643. The cubic root of 32412821 is about 318.8396156585.

It can be divided in two parts, 32412 and 821, that added together give a palindrome (33233).

The spelling of 32412821 in words is "thirty-two million, four hundred twelve thousand, eight hundred twenty-one".