78489006 has 16 divisors (see below), whose sum is σ = 160807248. Its totient is φ = 25524800.

The previous prime is 78489001. The next prime is 78489007. The reversal of 78489006 is 60098487.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78489001) 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, 159285 + ... + 159776.

It is an arithmetic number, because the mean of its divisors is an integer number (10050453).

Almost surely, 2^78489006 is an apocalyptic number.

78489006 is an abundant number, since it is smaller than the sum of its proper divisors (82318242).

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

78489006 is a wasteful number, since it uses less digits than its factorization.

78489006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319107.

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 78489006 is about 8859.4021242971. The cubic root of 78489006 is about 428.1568957784.

The spelling of 78489006 in words is "seventy-eight million, four hundred eighty-nine thousand, six".