76773901 has 2 divisors, whose sum is σ = 76773902. Its totient is φ = 76773900.

The previous prime is 76773899. The next prime is 76773919. The reversal of 76773901 is 10937767.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76212900 + 561001 = 8730^2 + 749^2 .

It is an emirp because it is prime and its reverse (10937767) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 76773901 - 2¹ = 76773899 is a prime.

Together with 76773899, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76773941) 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 as a sum of consecutive naturals, namely, 38386950 + 38386951.

It is an arithmetic number, because the mean of its divisors is an integer number (38386951).

Almost surely, 2^76773901 is an apocalyptic number.

It is an amenable number.

76773901 is a deficient number, since it is larger than the sum of its proper divisors (1).

76773901 is an equidigital number, since it uses as much as digits as its factorization.

76773901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 55566, while the sum is 40.

The square root of 76773901 is about 8762.0717299050. The cubic root of 76773901 is about 425.0152723462.

The spelling of 76773901 in words is "seventy-six million, seven hundred seventy-three thousand, nine hundred one".