63985692 has 24 divisors (see below), whose sum is σ = 157158400. Its totient is φ = 20205936.

The previous prime is 63985661. The next prime is 63985699. The reversal of 63985692 is 29658936.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63985699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140092 + ... + 140547.

Almost surely, 2^63985692 is an apocalyptic number.

It is an amenable number.

63985692 is an abundant number, since it is smaller than the sum of its proper divisors (93172708).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63985692 is a wasteful number, since it uses less digits than its factorization.

63985692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280665 (or 280663 counting only the distinct ones).

The product of its digits is 699840, while the sum is 48.

The square root of 63985692 is about 7999.1057000142. The cubic root of 63985692 is about 399.9701894450.

It can be divided in two parts, 6398 and 5692, that added together give a triangular number (12090 = T₁₅₅).

The spelling of 63985692 in words is "sixty-three million, nine hundred eighty-five thousand, six hundred ninety-two".