77701716 has 72 divisors (see below), whose sum is σ = 211236480. Its totient is φ = 24005376.

The previous prime is 77701691. The next prime is 77701721. The reversal of 77701716 is 61710777.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30940 + ... + 33356.

It is an arithmetic number, because the mean of its divisors is an integer number (2933840).

Almost surely, 2^77701716 is an apocalyptic number.

77701716 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 77701716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105618240).

77701716 is an abundant number, since it is smaller than the sum of its proper divisors (133534764).

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

77701716 is a wasteful number, since it uses less digits than its factorization.

77701716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2493 (or 2488 counting only the distinct ones).

The product of its (nonzero) digits is 14406, while the sum is 36.

The square root of 77701716 is about 8814.8576846141. The cubic root of 77701716 is about 426.7205289532.

The spelling of 77701716 in words is "seventy-seven million, seven hundred one thousand, seven hundred sixteen".