78473252 has 24 divisors (see below), whose sum is σ = 161337792. Its totient is φ = 32925600.

The previous prime is 78473251. The next prime is 78473257. The reversal of 78473252 is 25237487.

It is not an unprimeable number, because it can be changed into a prime (78473251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68024 + ... + 69167.

It is an arithmetic number, because the mean of its divisors is an integer number (6722408).

Almost surely, 2^78473252 is an apocalyptic number.

It is an amenable number.

78473252 is an abundant number, since it is smaller than the sum of its proper divisors (82864540).

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

78473252 is a wasteful number, since it uses less digits than its factorization.

78473252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137219 (or 137217 counting only the distinct ones).

The product of its digits is 94080, while the sum is 38.

The square root of 78473252 is about 8858.5129677616. The cubic root of 78473252 is about 428.1282478806.

The spelling of 78473252 in words is "seventy-eight million, four hundred seventy-three thousand, two hundred fifty-two".