76919261 has 2 divisors, whose sum is σ = 76919262. Its totient is φ = 76919260.

The previous prime is 76919243. The next prime is 76919273. The reversal of 76919261 is 16291967.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76230361 + 688900 = 8731^2 + 830^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76919261 is a prime.

It is a super-2 number, since 2×76919261² = 11833145425572242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76919221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38459630 + 38459631.

It is an arithmetic number, because the mean of its divisors is an integer number (38459631).

Almost surely, 2^76919261 is an apocalyptic number.

It is an amenable number.

76919261 is a deficient number, since it is larger than the sum of its proper divisors (1).

76919261 is an equidigital number, since it uses as much as digits as its factorization.

76919261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40824, while the sum is 41.

The square root of 76919261 is about 8770.3626492865. The cubic root of 76919261 is about 425.2833377069.

The spelling of 76919261 in words is "seventy-six million, nine hundred nineteen thousand, two hundred sixty-one".