77453313 has 16 divisors (see below), whose sum is σ = 118151040. Its totient is φ = 44211456.

The previous prime is 77453297. The next prime is 77453317. The reversal of 77453313 is 31335477.

It is a happy number.

It is not a de Polignac number, because 77453313 - 2⁴ = 77453297 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (77453317) 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 in 15 ways as a sum of consecutive naturals, for example, 30031 + ... + 32507.

It is an arithmetic number, because the mean of its divisors is an integer number (7384440).

Almost surely, 2^77453313 is an apocalyptic number.

It is an amenable number.

77453313 is a deficient number, since it is larger than the sum of its proper divisors (40697727).

77453313 is a wasteful number, since it uses less digits than its factorization.

77453313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3976.

The product of its digits is 26460, while the sum is 33.

The square root of 77453313 is about 8800.7563879476. The cubic root of 77453313 is about 426.2653188625.

The spelling of 77453313 in words is "seventy-seven million, four hundred fifty-three thousand, three hundred thirteen".