63728783 has 2 divisors, whose sum is σ = 63728784. Its totient is φ = 63728782.

The previous prime is 63728773. The next prime is 63728789. The reversal of 63728783 is 38782736.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 63728783 - 2¹⁴ = 63712399 is a prime.

It is a super-2 number, since 2×63728783² = 8122715565322178, which contains 22 as substring.

It is equal to p_3769883 and since 63728783 and 3769883 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63728789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31864391 + 31864392.

It is an arithmetic number, because the mean of its divisors is an integer number (31864392).

Almost surely, 2^63728783 is an apocalyptic number.

63728783 is a deficient number, since it is larger than the sum of its proper divisors (1).

63728783 is an equidigital number, since it uses as much as digits as its factorization.

63728783 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 338688, while the sum is 44.

The square root of 63728783 is about 7983.0309406891. The cubic root of 63728783 is about 399.4341645363.

The spelling of 63728783 in words is "sixty-three million, seven hundred twenty-eight thousand, seven hundred eighty-three".