74894071 has 4 divisors (see below), whose sum is σ = 85593232. Its totient is φ = 64194912.

The previous prime is 74894041. The next prime is 74894107. The reversal of 74894071 is 17049847.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17049847 = 883 ⋅19309.

It is a cyclic number.

It is not a de Polignac number, because 74894071 - 2⁷ = 74893943 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 (74894011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5349570 + ... + 5349583.

It is an arithmetic number, because the mean of its divisors is an integer number (21398308).

Almost surely, 2^74894071 is an apocalyptic number.

74894071 is a deficient number, since it is larger than the sum of its proper divisors (10699161).

74894071 is a wasteful number, since it uses less digits than its factorization.

74894071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10699160.

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 74894071 is about 8654.1360631781. The cubic root of 74894071 is about 421.5176969296.

The spelling of 74894071 in words is "seventy-four million, eight hundred ninety-four thousand, seventy-one".