74477812 has 24 divisors (see below), whose sum is σ = 135365832. Its totient is φ = 35827200.

The previous prime is 74477807. The next prime is 74477813. The reversal of 74477812 is 21877447.

It can be written as a sum of positive squares in 4 ways, for example, as 1648656 + 72829156 = 1284^2 + 8534^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74477813) 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, 8862 + ... + 15082.

It is an arithmetic number, because the mean of its divisors is an integer number (5640243).

Almost surely, 2^74477812 is an apocalyptic number.

It is an amenable number.

74477812 is a deficient number, since it is larger than the sum of its proper divisors (60888020).

74477812 is a wasteful number, since it uses less digits than its factorization.

74477812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6339 (or 6337 counting only the distinct ones).

The product of its digits is 87808, while the sum is 40.

The square root of 74477812 is about 8630.0528387722. The cubic root of 74477812 is about 420.7353180832.

The spelling of 74477812 in words is "seventy-four million, four hundred seventy-seven thousand, eight hundred twelve".