78803288 has 8 divisors (see below), whose sum is σ = 147756180. Its totient is φ = 39401640.

The previous prime is 78803287. The next prime is 78803293. The reversal of 78803288 is 88230887.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×78803288² = 12419916399221888, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78803287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4925198 + ... + 4925213.

Almost surely, 2^78803288 is an apocalyptic number.

It is an amenable number.

78803288 is a deficient number, since it is larger than the sum of its proper divisors (68952892).

78803288 is a wasteful number, since it uses less digits than its factorization.

78803288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9850417 (or 9850413 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 44.

The square root of 78803288 is about 8877.1216055656. The cubic root of 78803288 is about 428.7276033146.

The spelling of 78803288 in words is "seventy-eight million, eight hundred three thousand, two hundred eighty-eight".