78604570 has 32 divisors (see below), whose sum is σ = 161066880. Its totient is φ = 27339840.

The previous prime is 78604541. The next prime is 78604571. The reversal of 78604570 is 7540687.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (78604571) 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, 13005 + ... + 18064.

It is an arithmetic number, because the mean of its divisors is an integer number (5033340).

Almost surely, 2^78604570 is an apocalyptic number.

78604570 is an abundant number, since it is smaller than the sum of its proper divisors (82462310).

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

78604570 is a wasteful number, since it uses less digits than its factorization.

78604570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31110.

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 78604570 is about 8865.9218358837. The cubic root of 78604570 is about 428.3669262952.

The spelling of 78604570 in words is "seventy-eight million, six hundred four thousand, five hundred seventy".