103785939 has 12 divisors (see below), whose sum is σ = 151720296. Its totient is φ = 68356512.

The previous prime is 103785937. The next prime is 103785953. The reversal of 103785939 is 939587301.

It is a happy number.

It is not a de Polignac number, because 103785939 - 2¹ = 103785937 is a prime.

It is a super-2 number, since 2×103785939² = 21543042268223442, which contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 103785894 and 103785903.

It is not an unprimeable number, because it can be changed into a prime (103785931) 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, 68722 + ... + 70215.

It is an arithmetic number, because the mean of its divisors is an integer number (12643358).

Almost surely, 2^103785939 is an apocalyptic number.

103785939 is a deficient number, since it is larger than the sum of its proper divisors (47934357).

103785939 is a wasteful number, since it uses less digits than its factorization.

103785939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139026 (or 139023 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 45.

The square root of 103785939 is about 10187.5384171055. The cubic root of 103785939 is about 469.9440690951.

The spelling of 103785939 in words is "one hundred three million, seven hundred eighty-five thousand, nine hundred thirty-nine".