76774161 has 16 divisors (see below), whose sum is σ = 108417024. Its totient is φ = 48223824.

The previous prime is 76774147. The next prime is 76774177. The reversal of 76774161 is 16147767.

It is not a de Polignac number, because 76774161 - 2¹⁸ = 76512017 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (76774111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3681 + ... + 12926.

It is an arithmetic number, because the mean of its divisors is an integer number (6776064).

Almost surely, 2^76774161 is an apocalyptic number.

It is an amenable number.

76774161 is a deficient number, since it is larger than the sum of its proper divisors (31642863).

76774161 is a wasteful number, since it uses less digits than its factorization.

76774161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16700.

The product of its digits is 49392, while the sum is 39.

The square root of 76774161 is about 8762.0865665662. The cubic root of 76774161 is about 425.0157521267.

The spelling of 76774161 in words is "seventy-six million, seven hundred seventy-four thousand, one hundred sixty-one".