74994893 has 4 divisors (see below), whose sum is σ = 77021820. Its totient is φ = 72967968.

The previous prime is 74994869. The next prime is 74994911. The reversal of 74994893 is 39849947.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39849947 = 463 ⋅86069.

It can be written as a sum of positive squares in 2 ways, for example, as 56220004 + 18774889 = 7498^2 + 4333^2 .

It is a cyclic number.

It is not a de Polignac number, because 74994893 - 2²² = 70800589 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74994593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1013408 + ... + 1013481.

It is an arithmetic number, because the mean of its divisors is an integer number (19255455).

Almost surely, 2^74994893 is an apocalyptic number.

It is an amenable number.

74994893 is a deficient number, since it is larger than the sum of its proper divisors (2026927).

74994893 is a wasteful number, since it uses less digits than its factorization.

74994893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2026926.

The product of its digits is 1959552, while the sum is 53.

The square root of 74994893 is about 8659.9591800424. The cubic root of 74994893 is about 421.7067604100.

The spelling of 74994893 in words is "seventy-four million, nine hundred ninety-four thousand, eight hundred ninety-three".