76973761 has 2 divisors, whose sum is σ = 76973762. Its totient is φ = 76973760.

The previous prime is 76973749. The next prime is 76973777. The reversal of 76973761 is 16737967.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76895361 + 78400 = 8769^2 + 280^2 .

It is a cyclic number.

It is not a de Polignac number, because 76973761 - 2¹⁹ = 76449473 is a prime.

It is not a weakly prime, because it can be changed into another prime (76973711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38486880 + 38486881.

It is an arithmetic number, because the mean of its divisors is an integer number (38486881).

Almost surely, 2^76973761 is an apocalyptic number.

It is an amenable number.

76973761 is a deficient number, since it is larger than the sum of its proper divisors (1).

76973761 is an equidigital number, since it uses as much as digits as its factorization.

76973761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 333396, while the sum is 46.

The square root of 76973761 is about 8773.4691542172. The cubic root of 76973761 is about 425.3837567248.

The spelling of 76973761 in words is "seventy-six million, nine hundred seventy-three thousand, seven hundred sixty-one".