87073129 has 8 divisors (see below), whose sum is σ = 102295872. Its totient is φ = 73068240.

The previous prime is 87073111. The next prime is 87073139. The reversal of 87073129 is 92137078.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 87073129 - 2²³ = 78684521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87073139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 304309 + ... + 304594.

It is an arithmetic number, because the mean of its divisors is an integer number (12786984).

Almost surely, 2^87073129 is an apocalyptic number.

It is an amenable number.

87073129 is a deficient number, since it is larger than the sum of its proper divisors (15222743).

87073129 is a wasteful number, since it uses less digits than its factorization.

87073129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608927.

The product of its (nonzero) digits is 21168, while the sum is 37.

The square root of 87073129 is about 9331.2983555345. The cubic root of 87073129 is about 443.2288799212.

The spelling of 87073129 in words is "eighty-seven million, seventy-three thousand, one hundred twenty-nine".