63420193 has 4 divisors (see below), whose sum is σ = 63436180. Its totient is φ = 63404208.

The previous prime is 63420179. The next prime is 63420197. The reversal of 63420193 is 39102436.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 22165264 + 41254929 = 4708^2 + 6423^2 .

It is a cyclic number.

It is not a de Polignac number, because 63420193 - 2²⁵ = 29865761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63420197) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2971 + ... + 11647.

It is an arithmetic number, because the mean of its divisors is an integer number (15859045).

Almost surely, 2^63420193 is an apocalyptic number.

It is an amenable number.

63420193 is a deficient number, since it is larger than the sum of its proper divisors (15987).

63420193 is an equidigital number, since it uses as much as digits as its factorization.

63420193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15986.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 63420193 is about 7963.6796143491. The cubic root of 63420193 is about 398.7884025343.

The spelling of 63420193 in words is "sixty-three million, four hundred twenty thousand, one hundred ninety-three".