74327387 has 4 divisors (see below), whose sum is σ = 75268320. Its totient is φ = 73386456.

The previous prime is 74327381. The next prime is 74327389. The reversal of 74327387 is 78372347.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78372347 = 3931 ⋅19937.

It is a cyclic number.

It is not a de Polignac number, because 74327387 - 2²⁰ = 73278811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74327381) 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, 470348 + ... + 470505.

It is an arithmetic number, because the mean of its divisors is an integer number (18817080).

Almost surely, 2^74327387 is an apocalyptic number.

74327387 is a deficient number, since it is larger than the sum of its proper divisors (940933).

74327387 is an equidigital number, since it uses as much as digits as its factorization.

74327387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 940932.

The product of its digits is 197568, while the sum is 41.

The square root of 74327387 is about 8621.3332495618. Note that the first 3 decimals coincide. The cubic root of 74327387 is about 420.4518700542.

The spelling of 74327387 in words is "seventy-four million, three hundred twenty-seven thousand, three hundred eighty-seven".