78253896 has 32 divisors (see below), whose sum is σ = 223583040. Its totient is φ = 22358208.

The previous prime is 78253867. The next prime is 78253897. The reversal of 78253896 is 69835287.

It is a super-2 number, since 2×78253896² = 12247344478357632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78253897) 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, 232731 + ... + 233066.

It is an arithmetic number, because the mean of its divisors is an integer number (6986970).

Almost surely, 2^78253896 is an apocalyptic number.

It is an amenable number.

78253896 is an abundant number, since it is smaller than the sum of its proper divisors (145329144).

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

78253896 is a wasteful number, since it uses less digits than its factorization.

78253896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465813 (or 465809 counting only the distinct ones).

The product of its digits is 725760, while the sum is 48.

The square root of 78253896 is about 8846.1232186761. The cubic root of 78253896 is about 427.7289604881.

The spelling of 78253896 in words is "seventy-eight million, two hundred fifty-three thousand, eight hundred ninety-six".