77882943 has 8 divisors (see below), whose sum is σ = 107193856. Its totient is φ = 50247000.

The previous prime is 77882929. The next prime is 77882947. The reversal of 77882943 is 34928877.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 77882943 - 2⁴ = 77882927 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 77882892 and 77882901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77882947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 418633 + ... + 418818.

It is an arithmetic number, because the mean of its divisors is an integer number (13399232).

Almost surely, 2^77882943 is an apocalyptic number.

77882943 is a deficient number, since it is larger than the sum of its proper divisors (29310913).

77882943 is a wasteful number, since it uses less digits than its factorization.

77882943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 837485.

The product of its digits is 677376, while the sum is 48.

The square root of 77882943 is about 8825.1313304676. The cubic root of 77882943 is about 427.0520241483.

It can be divided in two parts, 7788 and 2943, that added together give a triangular number (10731 = T₁₄₆).

The spelling of 77882943 in words is "seventy-seven million, eight hundred eighty-two thousand, nine hundred forty-three".