63406193 has 4 divisors (see below), whose sum is σ = 66163008. Its totient is φ = 60649380.

The previous prime is 63406183. The next prime is 63406199. The reversal of 63406193 is 39160436.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63406193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63406199) 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, 1378373 + ... + 1378418.

It is an arithmetic number, because the mean of its divisors is an integer number (16540752).

Almost surely, 2^63406193 is an apocalyptic number.

It is an amenable number.

63406193 is a deficient number, since it is larger than the sum of its proper divisors (2756815).

63406193 is a wasteful number, since it uses less digits than its factorization.

63406193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2756814.

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 63406193 is about 7962.8005751745. The cubic root of 63406193 is about 398.7590562108.

The spelling of 63406193 in words is "sixty-three million, four hundred six thousand, one hundred ninety-three".