9938367386 has 4 divisors (see below), whose sum is σ = 14907551082. Its totient is φ = 4969183692.

The previous prime is 9938367379. The next prime is 9938367409. The reversal of 9938367386 is 6837638399.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6837638399 = 11197 ⋅610667.

It can be written as a sum of positive squares in only one way, i.e., 5140173025 + 4798194361 = 71695^2 + 69269^2 .

It is a super-2 number, since 2×9938367386² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2484591845 + ... + 2484591848.

Almost surely, 2^9938367386 is an apocalyptic number.

9938367386 is a deficient number, since it is larger than the sum of its proper divisors (4969183696).

9938367386 is a wasteful number, since it uses less digits than its factorization.

9938367386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4969183695.

The product of its digits is 35271936, while the sum is 62.

The square root of 9938367386 is about 99691.3606387234. The cubic root of 9938367386 is about 2149.9994509463. Note that the first 3 decimals are identical.

The spelling of 9938367386 in words is "nine billion, nine hundred thirty-eight million, three hundred sixty-seven thousand, three hundred eighty-six".