74945093 has 4 divisors (see below), whose sum is σ = 75167820. Its totient is φ = 74722368.

The previous prime is 74945071. The next prime is 74945137. The reversal of 74945093 is 39054947.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19918369 + 55026724 = 4463^2 + 7418^2 .

It is a cyclic number.

It is not a de Polignac number, because 74945093 - 2¹⁴ = 74928709 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 74945093.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74935093) 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 3 ways as a sum of consecutive naturals, for example, 110858 + ... + 111531.

It is an arithmetic number, because the mean of its divisors is an integer number (18791955).

Almost surely, 2^74945093 is an apocalyptic number.

It is an amenable number.

74945093 is a deficient number, since it is larger than the sum of its proper divisors (222727).

74945093 is a wasteful number, since it uses less digits than its factorization.

74945093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222726.

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 74945093 is about 8657.0834003145. The cubic root of 74945093 is about 421.6133956217.

The spelling of 74945093 in words is "seventy-four million, nine hundred forty-five thousand, ninety-three".