63997762 has 8 divisors (see below), whose sum is σ = 96100236. Its totient is φ = 31964352.

The previous prime is 63997729. The next prime is 63997763. The reversal of 63997762 is 26779936.

It can be written as a sum of positive squares in 2 ways, for example, as 63696361 + 301401 = 7981^2 + 549^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (63997763) 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 3 ways as a sum of consecutive naturals, for example, 14883 + ... + 18694.

Almost surely, 2^63997762 is an apocalyptic number.

63997762 is a deficient number, since it is larger than the sum of its proper divisors (32102474).

63997762 is a wasteful number, since it uses less digits than its factorization.

63997762 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34532.

The product of its digits is 857304, while the sum is 49.

The square root of 63997762 is about 7999.8601237772. The cubic root of 63997762 is about 399.9953374457.

It can be divided in two parts, 6399 and 7762, that added together give a square (14161 = 119²).

The spelling of 63997762 in words is "sixty-three million, nine hundred ninety-seven thousand, seven hundred sixty-two".