78288088 has 16 divisors (see below), whose sum is σ = 149914080. Its totient is φ = 38311008.

The previous prime is 78288083. The next prime is 78288101. The reversal of 78288088 is 88088287.

It is a super-2 number, since 2×78288088² = 12258049445391488, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78288083) 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, 103731 + ... + 104482.

It is an arithmetic number, because the mean of its divisors is an integer number (9369630).

Almost surely, 2^78288088 is an apocalyptic number.

It is an amenable number.

78288088 is a deficient number, since it is larger than the sum of its proper divisors (71625992).

78288088 is a wasteful number, since it uses less digits than its factorization.

78288088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208266 (or 208262 counting only the distinct ones).

The product of its (nonzero) digits is 458752, while the sum is 49.

The square root of 78288088 is about 8848.0556056119. The cubic root of 78288088 is about 427.7912482456.

The spelling of 78288088 in words is "seventy-eight million, two hundred eighty-eight thousand, eighty-eight".