74359993 has 4 divisors (see below), whose sum is σ = 74457460. Its totient is φ = 74262528.

The previous prime is 74359991. The next prime is 74359997. The reversal of 74359993 is 39995347.

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 23551609 + 50808384 = 4853^2 + 7128^2 .

It is a cyclic number.

It is not a de Polignac number, because 74359993 - 2¹ = 74359991 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74359991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47580 + ... + 49117.

It is an arithmetic number, because the mean of its divisors is an integer number (18614365).

Almost surely, 2^74359993 is an apocalyptic number.

It is an amenable number.

74359993 is a deficient number, since it is larger than the sum of its proper divisors (97467).

74359993 is an equidigital number, since it uses as much as digits as its factorization.

74359993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97466.

The product of its digits is 918540, while the sum is 49.

The square root of 74359993 is about 8623.2240490434. The cubic root of 74359993 is about 420.5133424583.

The spelling of 74359993 in words is "seventy-four million, three hundred fifty-nine thousand, nine hundred ninety-three".