77065343 has 4 divisors (see below), whose sum is σ = 78215640. Its totient is φ = 75915048.

The previous prime is 77065319. The next prime is 77065361. The reversal of 77065343 is 34356077.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34356077 = 7 ⋅4908011.

It is a cyclic number.

It is not a de Polignac number, because 77065343 - 2¹⁶ = 76999807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77065393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 575048 + ... + 575181.

It is an arithmetic number, because the mean of its divisors is an integer number (19553910).

Almost surely, 2^77065343 is an apocalyptic number.

77065343 is a deficient number, since it is larger than the sum of its proper divisors (1150297).

77065343 is a wasteful number, since it uses less digits than its factorization.

77065343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1150296.

The product of its (nonzero) digits is 52920, while the sum is 35.

The square root of 77065343 is about 8778.6868608010. The cubic root of 77065343 is about 425.5523945159.

The spelling of 77065343 in words is "seventy-seven million, sixty-five thousand, three hundred forty-three".