78601252 has 36 divisors (see below), whose sum is σ = 150258780. Its totient is φ = 35929152.

The previous prime is 78601231. The next prime is 78601261. The reversal of 78601252 is 25210687.

It can be written as a sum of positive squares in 2 ways, for example, as 45239076 + 33362176 = 6726^2 + 5776^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40938 + ... + 42814.

It is an arithmetic number, because the mean of its divisors is an integer number (4173855).

Almost surely, 2^78601252 is an apocalyptic number.

It is an amenable number.

78601252 is a deficient number, since it is larger than the sum of its proper divisors (71657528).

78601252 is a wasteful number, since it uses less digits than its factorization.

78601252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1948 (or 1927 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 78601252 is about 8865.7347129271. The cubic root of 78601252 is about 428.3608989041.

The spelling of 78601252 in words is "seventy-eight million, six hundred one thousand, two hundred fifty-two".