32857013 has 4 divisors (see below), whose sum is σ = 37550880. Its totient is φ = 28163148.

The previous prime is 32857009. The next prime is 32857021. The reversal of 32857013 is 31075823.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31075823 = 1481 ⋅20983.

It is a cyclic number.

It is not a de Polignac number, because 32857013 - 2² = 32857009 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 (32857093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2346923 + ... + 2346936.

It is an arithmetic number, because the mean of its divisors is an integer number (9387720).

Almost surely, 2^32857013 is an apocalyptic number.

It is an amenable number.

32857013 is a deficient number, since it is larger than the sum of its proper divisors (4693867).

32857013 is an equidigital number, since it uses as much as digits as its factorization.

32857013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4693866.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 32857013 is about 5732.1037150421. The cubic root of 32857013 is about 320.2894938844.

The spelling of 32857013 in words is "thirty-two million, eight hundred fifty-seven thousand, thirteen".