78253234 has 8 divisors (see below), whose sum is σ = 119369520. Its totient is φ = 38463396.

The previous prime is 78253181. The next prime is 78253271. The reversal of 78253234 is 43235287.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×78253234² = 12247137262917512, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 78253234.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 331464 + ... + 331699.

It is an arithmetic number, because the mean of its divisors is an integer number (14921190).

Almost surely, 2^78253234 is an apocalyptic number.

78253234 is a deficient number, since it is larger than the sum of its proper divisors (41116286).

78253234 is a wasteful number, since it uses less digits than its factorization.

78253234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 663224.

The product of its digits is 40320, while the sum is 34.

The square root of 78253234 is about 8846.0858010761. The cubic root of 78253234 is about 427.7277543400.

It can be divided in two parts, 78253 and 234, that added together give a palindrome (78487).

The spelling of 78253234 in words is "seventy-eight million, two hundred fifty-three thousand, two hundred thirty-four".