74062729 has 6 divisors (see below), whose sum is σ = 80198286. Its totient is φ = 68365440.

The previous prime is 74062721. The next prime is 74062757. The reversal of 74062729 is 92726047.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 4507129 + 69555600 = 2123^2 + 8340^2 .

It is not a de Polignac number, because 74062729 - 2³ = 74062721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74062721) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 218952 + ... + 219289.

It is an arithmetic number, because the mean of its divisors is an integer number (13366381).

Almost surely, 2^74062729 is an apocalyptic number.

It is an amenable number.

74062729 is a deficient number, since it is larger than the sum of its proper divisors (6135557).

74062729 is a wasteful number, since it uses less digits than its factorization.

74062729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438267 (or 438254 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 74062729 is about 8605.9705437562. The cubic root of 74062729 is about 419.9522413571.

The spelling of 74062729 in words is "seventy-four million, sixty-two thousand, seven hundred twenty-nine".