78226700 has 18 divisors (see below), whose sum is σ = 169752156. Its totient is φ = 31290640.

The previous prime is 78226699. The next prime is 78226711. The reversal of 78226700 is 762287.

It is a super-2 number, since 2×78226700² = 12238833185780000, which contains 22 as substring.

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, 391034 + ... + 391233.

Almost surely, 2^78226700 is an apocalyptic number.

It is an amenable number.

78226700 is an abundant number, since it is smaller than the sum of its proper divisors (91525456).

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

78226700 is a wasteful number, since it uses less digits than its factorization.

78226700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782281 (or 782274 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 78226700 is about 8844.5859145581. The cubic root of 78226700 is about 427.6794044267.

Adding to 78226700 its reverse (762287), we get a palindrome (78988987).

The spelling of 78226700 in words is "seventy-eight million, two hundred twenty-six thousand, seven hundred".