74062221 has 4 divisors (see below), whose sum is σ = 98749632. Its totient is φ = 49374812.

The previous prime is 74062213. The next prime is 74062229. The reversal of 74062221 is 12226047.

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 an interprime number because it is at equal distance from previous prime (74062213) and next prime (74062229).

It is a cyclic number.

It is not a de Polignac number, because 74062221 - 2³ = 74062213 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 74062191 and 74062200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74062229) 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, 12343701 + ... + 12343706.

It is an arithmetic number, because the mean of its divisors is an integer number (24687408).

Almost surely, 2^74062221 is an apocalyptic number.

It is an amenable number.

74062221 is a deficient number, since it is larger than the sum of its proper divisors (24687411).

74062221 is a wasteful number, since it uses less digits than its factorization.

74062221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24687410.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 74062221 is about 8605.9410293123. The cubic root of 74062221 is about 419.9512811970.

Adding to 74062221 its reverse (12226047), we get a palindrome (86288268).

The spelling of 74062221 in words is "seventy-four million, sixty-two thousand, two hundred twenty-one".