76700778 has 96 divisors (see below), whose sum is σ = 200242368. Its totient is φ = 19353600.

The previous prime is 76700773. The next prime is 76700779. The reversal of 76700778 is 87700767.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (76700773) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 119338 + ... + 119978.

It is an arithmetic number, because the mean of its divisors is an integer number (2085858).

Almost surely, 2^76700778 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 76700778, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100121184).

76700778 is an abundant number, since it is smaller than the sum of its proper divisors (123541590).

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

76700778 is a wasteful number, since it uses less digits than its factorization.

76700778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708 (or 701 counting only the distinct ones).

The product of its (nonzero) digits is 115248, while the sum is 42.

The square root of 76700778 is about 8757.8980354877. The cubic root of 76700778 is about 424.8802947761.

The spelling of 76700778 in words is "seventy-six million, seven hundred thousand, seven hundred seventy-eight".