74212073 has 16 divisors (see below), whose sum is σ = 83538000. Its totient is φ = 65452800.

The previous prime is 74212057. The next prime is 74212087. The reversal of 74212073 is 37021247.

It can be written as a sum of positive squares in 8 ways, for example, as 5438224 + 68773849 = 2332^2 + 8293^2 .

It is a cyclic number.

It is not a de Polignac number, because 74212073 - 2⁴ = 74212057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74212003) 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 15 ways as a sum of consecutive naturals, for example, 37103 + ... + 39051.

It is an arithmetic number, because the mean of its divisors is an integer number (5221125).

Almost surely, 2^74212073 is an apocalyptic number.

It is an amenable number.

74212073 is a deficient number, since it is larger than the sum of its proper divisors (9325927).

74212073 is a wasteful number, since it uses less digits than its factorization.

74212073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2092.

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 74212073 is about 8614.6429409465. The cubic root of 74212073 is about 420.2343231366.

The spelling of 74212073 in words is "seventy-four million, two hundred twelve thousand, seventy-three".