8632997938 has 4 divisors (see below), whose sum is σ = 12949496910. Its totient is φ = 4316498968.

The previous prime is 8632997759. The next prime is 8632997969. The reversal of 8632997938 is 8397992368.

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., 8145604009 + 487393929 = 90253^2 + 22077^2 .

It is a super-3 number, since 3×8632997938³ (a number of 31 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8632997938.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2158249483 + ... + 2158249486.

Almost surely, 2^8632997938 is an apocalyptic number.

8632997938 is a deficient number, since it is larger than the sum of its proper divisors (4316498972).

8632997938 is a wasteful number, since it uses less digits than its factorization.

8632997938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4316498971.

The product of its digits is 35271936, while the sum is 64.

The square root of 8632997938 is about 92913.9275781624. The cubic root of 8632997938 is about 2051.4166640883.

The spelling of 8632997938 in words is "eight billion, six hundred thirty-two million, nine hundred ninety-seven thousand, nine hundred thirty-eight".