74487776 has 48 divisors (see below), whose sum is σ = 165518640. Its totient is φ = 32686080.

The previous prime is 74487773. The next prime is 74487781. The reversal of 74487776 is 67778447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74487773) 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, 6560 + ... + 13856.

It is an arithmetic number, because the mean of its divisors is an integer number (3448305).

Almost surely, 2^74487776 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 74487776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82759320).

74487776 is an abundant number, since it is smaller than the sum of its proper divisors (91030864).

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

74487776 is a wasteful number, since it uses less digits than its factorization.

74487776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7347 (or 7339 counting only the distinct ones).

The product of its digits is 1843968, while the sum is 50.

The square root of 74487776 is about 8630.6301044593. The cubic root of 74487776 is about 420.7540799116.

The spelling of 74487776 in words is "seventy-four million, four hundred eighty-seven thousand, seven hundred seventy-six".