87743441 has 2 divisors, whose sum is σ = 87743442. Its totient is φ = 87743440.

The previous prime is 87743429. The next prime is 87743449. The reversal of 87743441 is 14434778.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65691025 + 22052416 = 8105^2 + 4696^2 .

It is a cyclic number.

It is not a de Polignac number, because 87743441 - 2⁶ = 87743377 is a prime.

It is a super-2 number, since 2×87743441² = 15397822877040962, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 87743395 and 87743404.

It is not a weakly prime, because it can be changed into another prime (87743449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43871720 + 43871721.

It is an arithmetic number, because the mean of its divisors is an integer number (43871721).

Almost surely, 2^87743441 is an apocalyptic number.

It is an amenable number.

87743441 is a deficient number, since it is larger than the sum of its proper divisors (1).

87743441 is an equidigital number, since it uses as much as digits as its factorization.

87743441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 75264, while the sum is 38.

The square root of 87743441 is about 9367.1468975350. The cubic root of 87743441 is about 444.3633381837.

The spelling of 87743441 in words is "eighty-seven million, seven hundred forty-three thousand, four hundred forty-one".