76621241 has 2 divisors, whose sum is σ = 76621242. Its totient is φ = 76621240.

The previous prime is 76621217. The next prime is 76621253. The reversal of 76621241 is 14212667.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76125625 + 495616 = 8725^2 + 704^2 .

It is a cyclic number.

It is not a de Polignac number, because 76621241 - 2⁶ = 76621177 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (76621291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38310620 + 38310621.

It is an arithmetic number, because the mean of its divisors is an integer number (38310621).

Almost surely, 2^76621241 is an apocalyptic number.

It is an amenable number.

76621241 is a deficient number, since it is larger than the sum of its proper divisors (1).

76621241 is an equidigital number, since it uses as much as digits as its factorization.

76621241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4032, while the sum is 29.

The square root of 76621241 is about 8753.3559849923. The cubic root of 76621241 is about 424.7333801783.

The spelling of 76621241 in words is "seventy-six million, six hundred twenty-one thousand, two hundred forty-one".