87072329 has 8 divisors (see below), whose sum is σ = 88558848. Its totient is φ = 85591440.

The previous prime is 87072313. The next prime is 87072331. The reversal of 87072329 is 92327078.

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 87072329 - 2⁴ = 87072313 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87072292 and 87072301.

It is not an unprimeable number, because it can be changed into a prime (87072829) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39599 + ... + 41739.

It is an arithmetic number, because the mean of its divisors is an integer number (11069856).

Almost surely, 2^87072329 is an apocalyptic number.

It is an amenable number.

87072329 is a deficient number, since it is larger than the sum of its proper divisors (1486519).

87072329 is a wasteful number, since it uses less digits than its factorization.

87072329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2815.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 87072329 is about 9331.2554889468. The cubic root of 87072329 is about 443.2275225021.

The spelling of 87072329 in words is "eighty-seven million, seventy-two thousand, three hundred twenty-nine".