873652081 has 2 divisors, whose sum is σ = 873652082. Its totient is φ = 873652080.

The previous prime is 873652069. The next prime is 873652093. The reversal of 873652081 is 180256378.

It is a balanced prime because it is at equal distance from previous prime (873652069) and next prime (873652093).

It can be written as a sum of positive squares in only one way, i.e., 715295025 + 158357056 = 26745^2 + 12584^2 .

It is a cyclic number.

It is not a de Polignac number, because 873652081 - 2⁷ = 873651953 is a prime.

It is a super-2 number, since 2×873652081² = 1526535917271261122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (873652981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 436826040 + 436826041.

It is an arithmetic number, because the mean of its divisors is an integer number (436826041).

Almost surely, 2^873652081 is an apocalyptic number.

It is an amenable number.

873652081 is a deficient number, since it is larger than the sum of its proper divisors (1).

873652081 is an equidigital number, since it uses as much as digits as its factorization.

873652081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 873652081 is about 29557.6061446119. The cubic root of 873652081 is about 955.9742006337.

The spelling of 873652081 in words is "eight hundred seventy-three million, six hundred fifty-two thousand, eighty-one".