74797776 has 120 divisors (see below), whose sum is σ = 222198080. Its totient is φ = 24088320.

The previous prime is 74797763. The next prime is 74797777. The reversal of 74797776 is 67779747.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74797777) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 726141 + ... + 726243.

Almost surely, 2^74797776 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74797776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111099040).

74797776 is an abundant number, since it is smaller than the sum of its proper divisors (147400304).

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

74797776 is a wasteful number, since it uses less digits than its factorization.

74797776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202 (or 149 counting only the distinct ones).

The product of its digits is 3630312, while the sum is 54.

The square root of 74797776 is about 8648.5707489735. The cubic root of 74797776 is about 421.3369640859.

The spelling of 74797776 in words is "seventy-four million, seven hundred ninety-seven thousand, seven hundred seventy-six".