76725169 has 2 divisors, whose sum is σ = 76725170. Its totient is φ = 76725168.

The previous prime is 76725167. The next prime is 76725191. The reversal of 76725169 is 96152767.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56430144 + 20295025 = 7512^2 + 4505^2 .

It is an emirp because it is prime and its reverse (96152767) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 76725169 - 2¹ = 76725167 is a prime.

It is a super-2 number, since 2×76725169² = 11773503116157122, which contains 22 as substring.

Together with 76725167, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (76725163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38362584 + 38362585.

It is an arithmetic number, because the mean of its divisors is an integer number (38362585).

Almost surely, 2^76725169 is an apocalyptic number.

It is an amenable number.

76725169 is a deficient number, since it is larger than the sum of its proper divisors (1).

76725169 is an equidigital number, since it uses as much as digits as its factorization.

76725169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 158760, while the sum is 43.

The square root of 76725169 is about 8759.2904392993. The cubic root of 76725169 is about 424.9253275960.

The spelling of 76725169 in words is "seventy-six million, seven hundred twenty-five thousand, one hundred sixty-nine".