77674344 has 64 divisors (see below), whose sum is σ = 218695680. Its totient is φ = 22776000.

The previous prime is 77674339. The next prime is 77674349. The reversal of 77674344 is 44347677.

It is an interprime number because it is at equal distance from previous prime (77674339) and next prime (77674349).

It is a junction number, because it is equal to n+sod(n) for n = 77674296 and 77674305.

It is not an unprimeable number, because it can be changed into a prime (77674349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3439 + ... + 12929.

It is an arithmetic number, because the mean of its divisors is an integer number (3417120).

Almost surely, 2^77674344 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 77674344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109347840).

77674344 is an abundant number, since it is smaller than the sum of its proper divisors (141021336).

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

77674344 is a wasteful number, since it uses less digits than its factorization.

77674344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9542 (or 9538 counting only the distinct ones).

The product of its digits is 395136, while the sum is 42.

The square root of 77674344 is about 8813.3049419613. The cubic root of 77674344 is about 426.6704160912.

The spelling of 77674344 in words is "seventy-seven million, six hundred seventy-four thousand, three hundred forty-four".