74714221 has 2 divisors, whose sum is σ = 74714222. Its totient is φ = 74714220.

The previous prime is 74714207. The next prime is 74714239. The reversal of 74714221 is 12241747.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43744996 + 30969225 = 6614^2 + 5565^2 .

It is a cyclic number.

It is not a de Polignac number, because 74714221 - 2¹¹ = 74712173 is a prime.

It is equal to p_4378501 and since 74714221 and 4378501 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 74714221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74714021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37357110 + 37357111.

It is an arithmetic number, because the mean of its divisors is an integer number (37357111).

Almost surely, 2^74714221 is an apocalyptic number.

It is an amenable number.

74714221 is a deficient number, since it is larger than the sum of its proper divisors (1).

74714221 is an equidigital number, since it uses as much as digits as its factorization.

74714221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3136, while the sum is 28.

The square root of 74714221 is about 8643.7388322415. The cubic root of 74714221 is about 421.1800167857.

Adding to 74714221 its reverse (12241747), we get a palindrome (86955968).

The spelling of 74714221 in words is "seventy-four million, seven hundred fourteen thousand, two hundred twenty-one".