87379543 has 2 divisors, whose sum is σ = 87379544. Its totient is φ = 87379542.

The previous prime is 87379529. The next prime is 87379549. The reversal of 87379543 is 34597378.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87379543 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 87379493 and 87379502.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87379549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43689771 + 43689772.

It is an arithmetic number, because the mean of its divisors is an integer number (43689772).

Almost surely, 2^87379543 is an apocalyptic number.

87379543 is a deficient number, since it is larger than the sum of its proper divisors (1).

87379543 is an equidigital number, since it uses as much as digits as its factorization.

87379543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 635040, while the sum is 46.

The square root of 87379543 is about 9347.7025519643. The cubic root of 87379543 is about 443.7481849294.

The spelling of 87379543 in words is "eighty-seven million, three hundred seventy-nine thousand, five hundred forty-three".