74898133 has 4 divisors (see below), whose sum is σ = 78840160. Its totient is φ = 70956108.

The previous prime is 74898127. The next prime is 74898157. The reversal of 74898133 is 33189847.

It is a happy number.

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 not a de Polignac number, because 74898133 - 2⁹ = 74897621 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 74898133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74898163) 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, 1970985 + ... + 1971022.

It is an arithmetic number, because the mean of its divisors is an integer number (19710040).

Almost surely, 2^74898133 is an apocalyptic number.

It is an amenable number.

74898133 is a deficient number, since it is larger than the sum of its proper divisors (3942027).

74898133 is a wasteful number, since it uses less digits than its factorization.

74898133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3942026.

The product of its digits is 145152, while the sum is 43.

The square root of 74898133 is about 8654.3707454673. The cubic root of 74898133 is about 421.5253173545.

The spelling of 74898133 in words is "seventy-four million, eight hundred ninety-eight thousand, one hundred thirty-three".