63494836 has 6 divisors (see below), whose sum is σ = 111115970. Its totient is φ = 31747416.

The previous prime is 63494831. The next prime is 63494843. The reversal of 63494836 is 63849436.

It can be written as a sum of positive squares in only one way, i.e., 59907600 + 3587236 = 7740^2 + 1894^2 .

It is a junction number, because it is equal to n+sod(n) for n = 63494792 and 63494801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63494831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7936851 + ... + 7936858.

Almost surely, 2^63494836 is an apocalyptic number.

It is an amenable number.

63494836 is a deficient number, since it is larger than the sum of its proper divisors (47621134).

63494836 is a wasteful number, since it uses less digits than its factorization.

63494836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15873713 (or 15873711 counting only the distinct ones).

The product of its digits is 373248, while the sum is 43.

The square root of 63494836 is about 7968.3647004891. The cubic root of 63494836 is about 398.9447937974.

The spelling of 63494836 in words is "sixty-three million, four hundred ninety-four thousand, eight hundred thirty-six".