76770073 has 2 divisors, whose sum is σ = 76770074. Its totient is φ = 76770072.

The previous prime is 76770041. The next prime is 76770097. The reversal of 76770073 is 37007767.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59397849 + 17372224 = 7707^2 + 4168^2 .

It is an emirp because it is prime and its reverse (37007767) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 76770073 - 2⁵ = 76770041 is a prime.

It is not a weakly prime, because it can be changed into another prime (76777073) 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, 38385036 + 38385037.

It is an arithmetic number, because the mean of its divisors is an integer number (38385037).

Almost surely, 2^76770073 is an apocalyptic number.

It is an amenable number.

76770073 is a deficient number, since it is larger than the sum of its proper divisors (1).

76770073 is an equidigital number, since it uses as much as digits as its factorization.

76770073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43218, while the sum is 37.

The square root of 76770073 is about 8761.8532856925. The cubic root of 76770073 is about 425.0082083766.

The spelling of 76770073 in words is "seventy-six million, seven hundred seventy thousand, seventy-three".