78253696 has 32 divisors (see below), whose sum is σ = 156451680. Its totient is φ = 38987520.

The previous prime is 78253691. The next prime is 78253699. The reversal of 78253696 is 69635287.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×78253696² = 12247281875320832, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78253691) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41445 + ... + 43291.

It is an arithmetic number, because the mean of its divisors is an integer number (4889115).

Almost surely, 2^78253696 is an apocalyptic number.

It is an amenable number.

78253696 is a deficient number, since it is larger than the sum of its proper divisors (78197984).

78253696 is a wasteful number, since it uses less digits than its factorization.

78253696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2192 (or 2180 counting only the distinct ones).

The product of its digits is 544320, while the sum is 46.

The square root of 78253696 is about 8846.1119142819. Note that the first 3 decimals coincide. The cubic root of 78253696 is about 427.7285960936.

The spelling of 78253696 in words is "seventy-eight million, two hundred fifty-three thousand, six hundred ninety-six".