77235313 has 2 divisors, whose sum is σ = 77235314. Its totient is φ = 77235312.

The previous prime is 77235269. The next prime is 77235359. The reversal of 77235313 is 31353277.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70090384 + 7144929 = 8372^2 + 2673^2 .

It is a cyclic number.

It is not a de Polignac number, because 77235313 - 2¹³ = 77227121 is a prime.

It is not a weakly prime, because it can be changed into another prime (77235383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38617656 + 38617657.

It is an arithmetic number, because the mean of its divisors is an integer number (38617657).

Almost surely, 2^77235313 is an apocalyptic number.

It is an amenable number.

77235313 is a deficient number, since it is larger than the sum of its proper divisors (1).

77235313 is an equidigital number, since it uses as much as digits as its factorization.

77235313 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13230, while the sum is 31.

The square root of 77235313 is about 8788.3623616690. The cubic root of 77235313 is about 425.8650211198.

The spelling of 77235313 in words is "seventy-seven million, two hundred thirty-five thousand, three hundred thirteen".