77350073 has 2 divisors, whose sum is σ = 77350074. Its totient is φ = 77350072.

The previous prime is 77350069. The next prime is 77350099. The reversal of 77350073 is 37005377.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48330304 + 29019769 = 6952^2 + 5387^2 .

It is an emirp because it is prime and its reverse (37005377) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 77350073 - 2² = 77350069 is a prime.

It is not a weakly prime, because it can be changed into another prime (77350043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38675036 + 38675037.

It is an arithmetic number, because the mean of its divisors is an integer number (38675037).

Almost surely, 2^77350073 is an apocalyptic number.

It is an amenable number.

77350073 is a deficient number, since it is larger than the sum of its proper divisors (1).

77350073 is an equidigital number, since it uses as much as digits as its factorization.

77350073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15435, while the sum is 32.

The square root of 77350073 is about 8794.8890271566. The cubic root of 77350073 is about 426.0758404211.

The spelling of 77350073 in words is "seventy-seven million, three hundred fifty thousand, seventy-three".