74677212 has 36 divisors (see below), whose sum is σ = 192333960. Its totient is φ = 24422112.

The previous prime is 74677177. The next prime is 74677217. The reversal of 74677212 is 21277647.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74677217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17662 + ... + 21477.

It is an arithmetic number, because the mean of its divisors is an integer number (5342610).

Almost surely, 2^74677212 is an apocalyptic number.

It is an amenable number.

74677212 is an abundant number, since it is smaller than the sum of its proper divisors (117656748).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74677212 is a wasteful number, since it uses less digits than its factorization.

74677212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39202 (or 39197 counting only the distinct ones).

The product of its digits is 32928, while the sum is 36.

The square root of 74677212 is about 8641.5977689314. The cubic root of 74677212 is about 421.1104627550.

The spelling of 74677212 in words is "seventy-four million, six hundred seventy-seven thousand, two hundred twelve".