76201649 has 2 divisors, whose sum is σ = 76201650. Its totient is φ = 76201648.

The previous prime is 76201637. The next prime is 76201669. The reversal of 76201649 is 94610267.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71656225 + 4545424 = 8465^2 + 2132^2 .

It is a cyclic number.

It is not a de Polignac number, because 76201649 - 2⁸ = 76201393 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 (76201669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38100824 + 38100825.

It is an arithmetic number, because the mean of its divisors is an integer number (38100825).

Almost surely, 2^76201649 is an apocalyptic number.

It is an amenable number.

76201649 is a deficient number, since it is larger than the sum of its proper divisors (1).

76201649 is an equidigital number, since it uses as much as digits as its factorization.

76201649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 76201649 is about 8729.3555890455. The cubic root of 76201649 is about 423.9566545965.

The spelling of 76201649 in words is "seventy-six million, two hundred one thousand, six hundred forty-nine".