87068739 has 8 divisors (see below), whose sum is σ = 119836672. Its totient is φ = 56173320.

The previous prime is 87068717. The next prime is 87068749. The reversal of 87068739 is 93786078.

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

It is not a de Polignac number, because 87068739 - 2⁹ = 87068227 is a prime.

It is a super-2 number, since 2×87068739² = 15161930622100242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87068749) 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, 468019 + ... + 468204.

It is an arithmetic number, because the mean of its divisors is an integer number (14979584).

Almost surely, 2^87068739 is an apocalyptic number.

87068739 is a deficient number, since it is larger than the sum of its proper divisors (32767933).

87068739 is a wasteful number, since it uses less digits than its factorization.

87068739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 936257.

The product of its (nonzero) digits is 508032, while the sum is 48.

The square root of 87068739 is about 9331.0631227101. The cubic root of 87068739 is about 443.2214309815.

The spelling of 87068739 in words is "eighty-seven million, sixty-eight thousand, seven hundred thirty-nine".