78253326 has 12 divisors (see below), whose sum is σ = 169548912. Its totient is φ = 26084436.

The previous prime is 78253319. The next prime is 78253333. The reversal of 78253326 is 62335287.

It is an interprime number because it is at equal distance from previous prime (78253319) and next prime (78253333).

It is a super-2 number, since 2×78253326² = 12247166060124552, which contains 22 as substring.

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 2173686 + ... + 2173721.

It is an arithmetic number, because the mean of its divisors is an integer number (14129076).

Almost surely, 2^78253326 is an apocalyptic number.

78253326 is an abundant number, since it is smaller than the sum of its proper divisors (91295586).

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

78253326 is a wasteful number, since it uses less digits than its factorization.

78253326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4347415 (or 4347412 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 78253326 is about 8846.0910011146. The cubic root of 78253326 is about 427.7279219622.

The spelling of 78253326 in words is "seventy-eight million, two hundred fifty-three thousand, three hundred twenty-six".