74828121 has 8 divisors (see below), whose sum is σ = 100059744. Its totient is φ = 49740960.

The previous prime is 74828113. The next prime is 74828123. The reversal of 74828121 is 12182847.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 74828121 - 2³ = 74828113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74828123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34900 + ... + 36981.

It is an arithmetic number, because the mean of its divisors is an integer number (12507468).

Almost surely, 2^74828121 is an apocalyptic number.

It is an amenable number.

74828121 is a deficient number, since it is larger than the sum of its proper divisors (25231623).

74828121 is a wasteful number, since it uses less digits than its factorization.

74828121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72231.

The product of its digits is 7168, while the sum is 33.

The square root of 74828121 is about 8650.3249071928. The cubic root of 74828121 is about 421.3939343251.

The spelling of 74828121 in words is "seventy-four million, eight hundred twenty-eight thousand, one hundred twenty-one".