78380589 has 8 divisors (see below), whose sum is σ = 119437120. Its totient is φ = 44788896.

The previous prime is 78380569. The next prime is 78380593. The reversal of 78380589 is 98508387.

It is a happy number.

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

It is not a de Polignac number, because 78380589 - 2⁸ = 78380333 is a prime.

It is a super-2 number, since 2×78380589² = 12287033463973842, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78380539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1866184 + ... + 1866225.

It is an arithmetic number, because the mean of its divisors is an integer number (14929640).

Almost surely, 2^78380589 is an apocalyptic number.

It is an amenable number.

78380589 is a deficient number, since it is larger than the sum of its proper divisors (41056531).

78380589 is a wasteful number, since it uses less digits than its factorization.

78380589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3732419.

The product of its (nonzero) digits is 483840, while the sum is 48.

The square root of 78380589 is about 8853.2812561219. The cubic root of 78380589 is about 427.9596669857.

The spelling of 78380589 in words is "seventy-eight million, three hundred eighty thousand, five hundred eighty-nine".