78677232 has 60 divisors (see below), whose sum is σ = 210607800. Its totient is φ = 25308416.

The previous prime is 78677231. The next prime is 78677279. The reversal of 78677232 is 23277687.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78677231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39394 + ... + 41342.

It is an arithmetic number, because the mean of its divisors is an integer number (3510130).

Almost surely, 2^78677232 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 78677232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105303900).

78677232 is an abundant number, since it is smaller than the sum of its proper divisors (131930568).

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

78677232 is a wasteful number, since it uses less digits than its factorization.

78677232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2018 (or 1983 counting only the distinct ones).

The product of its digits is 197568, while the sum is 42.

The square root of 78677232 is about 8870.0187147491. The cubic root of 78677232 is about 428.4988796561.

The spelling of 78677232 in words is "seventy-eight million, six hundred seventy-seven thousand, two hundred thirty-two".