873542087 has 16 divisors (see below), whose sum is σ = 986978304. Its totient is φ = 765948000.

The previous prime is 873542083. The next prime is 873542099. The reversal of 873542087 is 780245378.

It is a happy number.

It is not a de Polignac number, because 873542087 - 2² = 873542083 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (873542083) 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 in 15 ways as a sum of consecutive naturals, for example, 101933 + ... + 110169.

It is an arithmetic number, because the mean of its divisors is an integer number (61686144).

Almost surely, 2^873542087 is an apocalyptic number.

873542087 is a deficient number, since it is larger than the sum of its proper divisors (113436217).

873542087 is a wasteful number, since it uses less digits than its factorization.

873542087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8590.

The product of its (nonzero) digits is 376320, while the sum is 44.

The square root of 873542087 is about 29555.7454143860. The cubic root of 873542087 is about 955.9340794605.

The spelling of 873542087 in words is "eight hundred seventy-three million, five hundred forty-two thousand, eighty-seven".