78945264 has 60 divisors (see below), whose sum is σ = 221836992. Its totient is φ = 26208000.

The previous prime is 78945233. The next prime is 78945287. The reversal of 78945264 is 46254987.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39489 + ... + 41439.

Almost surely, 2^78945264 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78945264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110918496).

78945264 is an abundant number, since it is smaller than the sum of its proper divisors (142891728).

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

78945264 is a wasteful number, since it uses less digits than its factorization.

78945264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2246 (or 2237 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 78945264 is about 8885.1147432096. The cubic root of 78945264 is about 428.9849213081.

The spelling of 78945264 in words is "seventy-eight million, nine hundred forty-five thousand, two hundred sixty-four".