77832823 has 2 divisors, whose sum is σ = 77832824. Its totient is φ = 77832822.

The previous prime is 77832809. The next prime is 77832869. The reversal of 77832823 is 32823877.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 77832823 - 2²⁵ = 44278391 is a prime.

It is a super-2 number, since 2×77832823² = 12115896672298658, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77838823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38916411 + 38916412.

It is an arithmetic number, because the mean of its divisors is an integer number (38916412).

Almost surely, 2^77832823 is an apocalyptic number.

77832823 is a deficient number, since it is larger than the sum of its proper divisors (1).

77832823 is an equidigital number, since it uses as much as digits as its factorization.

77832823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 112896, while the sum is 40.

The square root of 77832823 is about 8822.2912556773. The cubic root of 77832823 is about 426.9603975798.

The spelling of 77832823 in words is "seventy-seven million, eight hundred thirty-two thousand, eight hundred twenty-three".