78097852 has 24 divisors (see below), whose sum is σ = 156947840. Its totient is φ = 33309360.

The previous prime is 78097843. The next prime is 78097853. The reversal of 78097852 is 25879087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78097853) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 702 + ... + 12517.

Almost surely, 2^78097852 is an apocalyptic number.

It is an amenable number.

78097852 is an abundant number, since it is smaller than the sum of its proper divisors (78849988).

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

78097852 is a wasteful number, since it uses less digits than its factorization.

78097852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13441 (or 13439 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 46.

The square root of 78097852 is about 8837.2989086032. The cubic root of 78097852 is about 427.4444636769. Note that the first 4 decimals are identical.

The spelling of 78097852 in words is "seventy-eight million, ninety-seven thousand, eight hundred fifty-two".