74115493 has 4 divisors (see below), whose sum is σ = 74656620. Its totient is φ = 73574368.

The previous prime is 74115491. The next prime is 74115511. The reversal of 74115493 is 39451147.

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 37173409 + 36942084 = 6097^2 + 6078^2 .

It is a cyclic number.

It is not a de Polignac number, because 74115493 - 2¹ = 74115491 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 (74115491) 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, 270358 + ... + 270631.

It is an arithmetic number, because the mean of its divisors is an integer number (18664155).

Almost surely, 2^74115493 is an apocalyptic number.

It is an amenable number.

74115493 is a deficient number, since it is larger than the sum of its proper divisors (541127).

74115493 is a wasteful number, since it uses less digits than its factorization.

74115493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541126.

The product of its digits is 15120, while the sum is 34.

The square root of 74115493 is about 8609.0355441246. The cubic root of 74115493 is about 420.0519455781.

The spelling of 74115493 in words is "seventy-four million, one hundred fifteen thousand, four hundred ninety-three".