78520962 has 32 divisors (see below), whose sum is σ = 171037440. Its totient is φ = 23886720.

The previous prime is 78520921. The next prime is 78520963. The reversal of 78520962 is 26902587.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 78520962.

It is not an unprimeable number, because it can be changed into a prime (78520963) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1287 + ... + 12597.

It is an arithmetic number, because the mean of its divisors is an integer number (5344920).

Almost surely, 2^78520962 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78520962, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85518720).

78520962 is an abundant number, since it is smaller than the sum of its proper divisors (92516478).

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

78520962 is a wasteful number, since it uses less digits than its factorization.

78520962 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11418.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 78520962 is about 8861.2054484703. The cubic root of 78520962 is about 428.2149944686.

The spelling of 78520962 in words is "seventy-eight million, five hundred twenty thousand, nine hundred sixty-two".