74381347 has 4 divisors (see below), whose sum is σ = 75103600. Its totient is φ = 73659096.

The previous prime is 74381311. The next prime is 74381353. The reversal of 74381347 is 74318347.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74381347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74381947) 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, 360972 + ... + 361177.

It is an arithmetic number, because the mean of its divisors is an integer number (18775900).

Almost surely, 2^74381347 is an apocalyptic number.

74381347 is a deficient number, since it is larger than the sum of its proper divisors (722253).

74381347 is a wasteful number, since it uses less digits than its factorization.

74381347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722252.

The product of its digits is 56448, while the sum is 37.

The square root of 74381347 is about 8624.4621281562. The cubic root of 74381347 is about 420.5535916215.

The spelling of 74381347 in words is "seventy-four million, three hundred eighty-one thousand, three hundred forty-seven".