63998962 has 4 divisors (see below), whose sum is σ = 95998446. Its totient is φ = 31999480.

The previous prime is 63998959. The next prime is 63998971. The reversal of 63998962 is 26989936.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 56265001 + 7733961 = 7501^2 + 2781^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15999739 + ... + 15999742.

Almost surely, 2^63998962 is an apocalyptic number.

63998962 is a deficient number, since it is larger than the sum of its proper divisors (31999484).

63998962 is a wasteful number, since it uses less digits than its factorization.

63998962 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31999483.

The product of its digits is 1259712, while the sum is 52.

The square root of 63998962 is about 7999.9351247370. The cubic root of 63998962 is about 399.9978374883.

The spelling of 63998962 in words is "sixty-three million, nine hundred ninety-eight thousand, nine hundred sixty-two".