63028591 has 4 divisors (see below), whose sum is σ = 63093184. Its totient is φ = 62964000.

The previous prime is 63028573. The next prime is 63028601. The reversal of 63028591 is 19582036.

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

It is a cyclic number.

It is not a de Polignac number, because 63028591 - 2⁷ = 63028463 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 (63028531) 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, 30810 + ... + 32791.

It is an arithmetic number, because the mean of its divisors is an integer number (15773296).

Almost surely, 2^63028591 is an apocalyptic number.

63028591 is a deficient number, since it is larger than the sum of its proper divisors (64593).

63028591 is an equidigital number, since it uses as much as digits as its factorization.

63028591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64592.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 63028591 is about 7939.0547926060. The cubic root of 63028591 is about 397.9659049267.

The spelling of 63028591 in words is "sixty-three million, twenty-eight thousand, five hundred ninety-one".