938693947 has 12 divisors (see below), whose sum is σ = 1005348456. Its totient is φ = 873424640.

The previous prime is 938693927. The next prime is 938693989. The reversal of 938693947 is 749396839.

It is not a de Polignac number, because 938693947 - 2²³ = 930305339 is a prime.

It is a super-2 number, since 2×938693947² = 1762292652268877618, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 938693891 and 938693900.

It is not an unprimeable number, because it can be changed into a prime (938693927) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 131172 + ... + 138142.

It is an arithmetic number, because the mean of its divisors is an integer number (83779038).

Almost surely, 2^938693947 is an apocalyptic number.

938693947 is a deficient number, since it is larger than the sum of its proper divisors (66654509).

938693947 is an equidigital number, since it uses as much as digits as its factorization.

938693947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7166 (or 7077 counting only the distinct ones).

The product of its digits is 8817984, while the sum is 58.

The square root of 938693947 is about 30638.1126540131. The cubic root of 938693947 is about 979.1322135488.

The spelling of 938693947 in words is "nine hundred thirty-eight million, six hundred ninety-three thousand, nine hundred forty-seven".