87000739 has 8 divisors (see below), whose sum is σ = 101742080. Its totient is φ = 72837576.

The previous prime is 87000731. The next prime is 87000757. The reversal of 87000739 is 93700078.

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

It is not a de Polignac number, because 87000739 - 2³ = 87000731 is a prime.

It is a super-2 number, since 2×87000739² = 15138257173092242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87000731) 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, 144219 + ... + 144820.

It is an arithmetic number, because the mean of its divisors is an integer number (12717760).

Almost surely, 2^87000739 is an apocalyptic number.

87000739 is a deficient number, since it is larger than the sum of its proper divisors (14741341).

87000739 is a wasteful number, since it uses less digits than its factorization.

87000739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289089.

The product of its (nonzero) digits is 10584, while the sum is 34.

The square root of 87000739 is about 9327.4186675629. The cubic root of 87000739 is about 443.1060167804.

The spelling of 87000739 in words is "eighty-seven million, seven hundred thirty-nine", and thus it is an aban number.