76749856 has 12 divisors (see below), whose sum is σ = 151101342. Its totient is φ = 38374912.

The previous prime is 76749853. The next prime is 76749857. The reversal of 76749856 is 65894767.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 62157456 + 14592400 = 7884^2 + 3820^2 .

It is an alternating number because its digits alternate between odd and even.

It is a pancake number, because a pancake can be divided into 76749856 parts by 12389 straight cuts.

It is not an unprimeable number, because it can be changed into a prime (76749853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1199185 + ... + 1199248.

Almost surely, 2^76749856 is an apocalyptic number.

It is an amenable number.

76749856 is a deficient number, since it is larger than the sum of its proper divisors (74351486).

76749856 is a wasteful number, since it uses less digits than its factorization.

76749856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2398443 (or 2398435 counting only the distinct ones).

The product of its digits is 2540160, while the sum is 52.

The square root of 76749856 is about 8760.6995154497. The cubic root of 76749856 is about 424.9708971998.

The spelling of 76749856 in words is "seventy-six million, seven hundred forty-nine thousand, eight hundred fifty-six".