74068839 has 12 divisors (see below), whose sum is σ = 115218376. Its totient is φ = 45580752.

The previous prime is 74068831. The next prime is 74068849. The reversal of 74068839 is 93886047.

It is a happy number.

It is not a de Polignac number, because 74068839 - 2³ = 74068831 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 74068794 and 74068803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74068831) 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, 316417 + ... + 316650.

Almost surely, 2^74068839 is an apocalyptic number.

74068839 is a deficient number, since it is larger than the sum of its proper divisors (41149537).

74068839 is a wasteful number, since it uses less digits than its factorization.

74068839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633086 (or 633083 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 74068839 is about 8606.3255225444. The cubic root of 74068839 is about 419.9637893952.

The spelling of 74068839 in words is "seventy-four million, sixty-eight thousand, eight hundred thirty-nine".