74071493 has 4 divisors (see below), whose sum is σ = 76460928. Its totient is φ = 71682060.

The previous prime is 74071489. The next prime is 74071541. The reversal of 74071493 is 39417047.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 74071493 - 2² = 74071489 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 (74071433) 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, 1194671 + ... + 1194732.

It is an arithmetic number, because the mean of its divisors is an integer number (19115232).

Almost surely, 2^74071493 is an apocalyptic number.

It is an amenable number.

74071493 is a deficient number, since it is larger than the sum of its proper divisors (2389435).

74071493 is a wasteful number, since it uses less digits than its factorization.

74071493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2389434.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 74071493 is about 8606.4797100789. The cubic root of 74071493 is about 419.9688053173.

The spelling of 74071493 in words is "seventy-four million, seventy-one thousand, four hundred ninety-three".