77350849 has 2 divisors, whose sum is σ = 77350850. Its totient is φ = 77350848.

The previous prime is 77350813. The next prime is 77350877. The reversal of 77350849 is 94805377.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73410624 + 3940225 = 8568^2 + 1985^2 .

It is a cyclic number.

It is not a de Polignac number, because 77350849 - 2²¹ = 75253697 is a prime.

It is not a weakly prime, because it can be changed into another prime (77353849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38675424 + 38675425.

It is an arithmetic number, because the mean of its divisors is an integer number (38675425).

Almost surely, 2^77350849 is an apocalyptic number.

It is an amenable number.

77350849 is a deficient number, since it is larger than the sum of its proper divisors (1).

77350849 is an equidigital number, since it uses as much as digits as its factorization.

77350849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 211680, while the sum is 43.

The square root of 77350849 is about 8794.9331435776. The cubic root of 77350849 is about 426.0772652582.

The spelling of 77350849 in words is "seventy-seven million, three hundred fifty thousand, eight hundred forty-nine".