53728479 has 12 divisors (see below), whose sum is σ = 88694736. Its totient is φ = 30701952.

The previous prime is 53728463. The next prime is 53728481. The reversal of 53728479 is 97482735.

It is not a de Polignac number, because 53728479 - 2⁴ = 53728463 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53728429) 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 11 ways as a sum of consecutive naturals, for example, 426354 + ... + 426479.

It is an arithmetic number, because the mean of its divisors is an integer number (7391228).

Almost surely, 2^53728479 is an apocalyptic number.

53728479 is a deficient number, since it is larger than the sum of its proper divisors (34966257).

53728479 is a wasteful number, since it uses less digits than its factorization.

53728479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 852846 (or 852843 counting only the distinct ones).

The product of its digits is 423360, while the sum is 45.

The square root of 53728479 is about 7329.9712823448. The cubic root of 53728479 is about 377.3417408931.

The spelling of 53728479 in words is "fifty-three million, seven hundred twenty-eight thousand, four hundred seventy-nine".