87743429 has 2 divisors, whose sum is σ = 87743430. Its totient is φ = 87743428.

The previous prime is 87743419. The next prime is 87743441. The reversal of 87743429 is 92434778.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81993025 + 5750404 = 9055^2 + 2398^2 .

It is a cyclic number.

It is not a de Polignac number, because 87743429 - 2²⁴ = 70966213 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 87743429.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87743419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43871714 + 43871715.

It is an arithmetic number, because the mean of its divisors is an integer number (43871715).

Almost surely, 2^87743429 is an apocalyptic number.

It is an amenable number.

87743429 is a deficient number, since it is larger than the sum of its proper divisors (1).

87743429 is an equidigital number, since it uses as much as digits as its factorization.

87743429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 338688, while the sum is 44.

The square root of 87743429 is about 9367.1462569984. The cubic root of 87743429 is about 444.3633179263.

The spelling of 87743429 in words is "eighty-seven million, seven hundred forty-three thousand, four hundred twenty-nine".