74064757 has 6 divisors (see below), whose sum is σ = 80200482. Its totient is φ = 68367312.

The previous prime is 74064751. The next prime is 74064763. The reversal of 74064757 is 75746047.

It is an interprime number because it is at equal distance from previous prime (74064751) and next prime (74064763).

It can be written as a sum of positive squares in 3 ways, for example, as 10719076 + 63345681 = 3274^2 + 7959^2 .

It is not a de Polignac number, because 74064757 - 2¹⁵ = 74031989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74064751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 218958 + ... + 219295.

It is an arithmetic number, because the mean of its divisors is an integer number (13366747).

Almost surely, 2^74064757 is an apocalyptic number.

It is an amenable number.

74064757 is a deficient number, since it is larger than the sum of its proper divisors (6135725).

74064757 is a wasteful number, since it uses less digits than its factorization.

74064757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438279 (or 438266 counting only the distinct ones).

The product of its (nonzero) digits is 164640, while the sum is 40.

The square root of 74064757 is about 8606.0883681264. The cubic root of 74064757 is about 419.9560743934.

The spelling of 74064757 in words is "seventy-four million, sixty-four thousand, seven hundred fifty-seven".