63728423 has 16 divisors (see below), whose sum is σ = 72859392. Its totient is φ = 55176000.

The previous prime is 63728417. The next prime is 63728429. The reversal of 63728423 is 32482736.

It is an interprime number because it is at equal distance from previous prime (63728417) and next prime (63728429).

It is not a de Polignac number, because 63728423 - 2¹² = 63724327 is a prime.

It is a super-2 number, since 2×63728423² = 8122623796133858, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63728429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83363 + ... + 84123.

It is an arithmetic number, because the mean of its divisors is an integer number (4553712).

Almost surely, 2^63728423 is an apocalyptic number.

63728423 is a deficient number, since it is larger than the sum of its proper divisors (9130969).

63728423 is a wasteful number, since it uses less digits than its factorization.

63728423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1126.

The product of its digits is 48384, while the sum is 35.

The square root of 63728423 is about 7983.0083928304. The cubic root of 63728423 is about 399.4334124085.

The spelling of 63728423 in words is "sixty-three million, seven hundred twenty-eight thousand, four hundred twenty-three".