52728974 has 4 divisors (see below), whose sum is σ = 79093464. Its totient is φ = 26364486.

The previous prime is 52728937. The next prime is 52728983. The reversal of 52728974 is 47982725.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13182242 + ... + 13182245.

It is an arithmetic number, because the mean of its divisors is an integer number (19773366).

Almost surely, 2^52728974 is an apocalyptic number.

52728974 is a deficient number, since it is larger than the sum of its proper divisors (26364490).

52728974 is a wasteful number, since it uses less digits than its factorization.

52728974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26364489.

The product of its digits is 282240, while the sum is 44.

The square root of 52728974 is about 7261.4718893624. The cubic root of 52728974 is about 374.9871971925.

The spelling of 52728974 in words is "fifty-two million, seven hundred twenty-eight thousand, nine hundred seventy-four".