32878057 has 4 divisors (see below), whose sum is σ = 32975956. Its totient is φ = 32780160.

The previous prime is 32878049. The next prime is 32878061. The reversal of 32878057 is 75087823.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75087823 = 953 ⋅78791.

It can be written as a sum of positive squares in 2 ways, for example, as 4618201 + 28259856 = 2149^2 + 5316^2 .

It is a cyclic number.

It is not a de Polignac number, because 32878057 - 2³ = 32878049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32878007) 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, 48444 + ... + 49117.

It is an arithmetic number, because the mean of its divisors is an integer number (8243989).

Almost surely, 2^32878057 is an apocalyptic number.

It is an amenable number.

32878057 is a deficient number, since it is larger than the sum of its proper divisors (97899).

32878057 is an equidigital number, since it uses as much as digits as its factorization.

32878057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97898.

The product of its (nonzero) digits is 94080, while the sum is 40.

The square root of 32878057 is about 5733.9390474612. The cubic root of 32878057 is about 320.3578581193.

The spelling of 32878057 in words is "thirty-two million, eight hundred seventy-eight thousand, fifty-seven".