74307293 has 8 divisors (see below), whose sum is σ = 76681080. Its totient is φ = 71960320.

The previous prime is 74307287. The next prime is 74307301. The reversal of 74307293 is 39270347.

It can be written as a sum of positive squares in 4 ways, for example, as 18983449 + 55323844 = 4357^2 + 7438^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 74307293 - 2²² = 70112989 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 (74307203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 998 + ... + 12231.

It is an arithmetic number, because the mean of its divisors is an integer number (9585135).

Almost surely, 2^74307293 is an apocalyptic number.

It is an amenable number.

74307293 is a deficient number, since it is larger than the sum of its proper divisors (2373787).

74307293 is a wasteful number, since it uses less digits than its factorization.

74307293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13407.

The product of its (nonzero) digits is 31752, while the sum is 35.

The square root of 74307293 is about 8620.1678057913. The cubic root of 74307293 is about 420.4139776897.

The spelling of 74307293 in words is "seventy-four million, three hundred seven thousand, two hundred ninety-three".