87182479 has 2 divisors, whose sum is σ = 87182480. Its totient is φ = 87182478.

The previous prime is 87182461. The next prime is 87182549. The reversal of 87182479 is 97428178.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87182479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87182419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43591239 + 43591240.

It is an arithmetic number, because the mean of its divisors is an integer number (43591240).

Almost surely, 2^87182479 is an apocalyptic number.

87182479 is a deficient number, since it is larger than the sum of its proper divisors (1).

87182479 is an equidigital number, since it uses as much as digits as its factorization.

87182479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 225792, while the sum is 46.

The square root of 87182479 is about 9337.1558303372. The cubic root of 87182479 is about 443.4143439626.

The spelling of 87182479 in words is "eighty-seven million, one hundred eighty-two thousand, four hundred seventy-nine".