74712212 has 12 divisors (see below), whose sum is σ = 138437460. Its totient is φ = 35158656.

The previous prime is 74712203. The next prime is 74712217. The reversal of 74712212 is 21221747.

It can be written as a sum of positive squares in 2 ways, for example, as 68492176 + 6220036 = 8276^2 + 2494^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74712217) 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, 549287 + ... + 549422.

It is an arithmetic number, because the mean of its divisors is an integer number (11536455).

Almost surely, 2^74712212 is an apocalyptic number.

It is an amenable number.

74712212 is a deficient number, since it is larger than the sum of its proper divisors (63725248).

74712212 is a wasteful number, since it uses less digits than its factorization.

74712212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1098730 (or 1098728 counting only the distinct ones).

The product of its digits is 1568, while the sum is 26.

The square root of 74712212 is about 8643.6226201749. The cubic root of 74712212 is about 421.1762416979.

Adding to 74712212 its reverse (21221747), we get a palindrome (95933959).

The spelling of 74712212 in words is "seventy-four million, seven hundred twelve thousand, two hundred twelve".