72860089 has 8 divisors (see below), whose sum is σ = 73574280. Its totient is φ = 72149376.

The previous prime is 72860083. The next prime is 72860153. The reversal of 72860089 is 98006827.

It can be written as a sum of positive squares in 4 ways, for example, as 1710864 + 71149225 = 1308^2 + 8435^2 .

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 72860089 - 2⁵ = 72860057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72860083) 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, 60477 + ... + 61669.

It is an arithmetic number, because the mean of its divisors is an integer number (9196785).

Almost surely, 2^72860089 is an apocalyptic number.

It is an amenable number.

72860089 is a deficient number, since it is larger than the sum of its proper divisors (714191).

72860089 is a wasteful number, since it uses less digits than its factorization.

72860089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1739.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 72860089 is about 8535.8121464803. The cubic root of 72860089 is about 417.6667463548. Note that the first 3 decimals are identical.

The spelling of 72860089 in words is "seventy-two million, eight hundred sixty thousand, eighty-nine".