78589014 has 64 divisors (see below), whose sum is σ = 187799040. Its totient is φ = 21450240.

The previous prime is 78588973. The next prime is 78589037. The reversal of 78589014 is 41098587.

It is a Harshad number since it is a multiple of its sum of digits (42).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 137349 + ... + 137919.

It is an arithmetic number, because the mean of its divisors is an integer number (2934360).

Almost surely, 2^78589014 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78589014, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93899520).

78589014 is an abundant number, since it is smaller than the sum of its proper divisors (109210026).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78589014 is a wasteful number, since it uses less digits than its factorization.

78589014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 725.

The product of its (nonzero) digits is 80640, while the sum is 42.

The square root of 78589014 is about 8865.0445007343. The cubic root of 78589014 is about 428.3386662100.

The spelling of 78589014 in words is "seventy-eight million, five hundred eighty-nine thousand, fourteen".