78488 has 8 divisors (see below), whose sum is σ = 147180. Its totient is φ = 39240.

The previous prime is 78487. The next prime is 78497. The reversal of 78488 is 88487.

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

It is a super-2 number, since 2×78488² = 12320732288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4898 + ... + 4913.

2⁷⁸⁴⁸⁸ is an apocalyptic number.

It is an amenable number.

78488 is a deficient number, since it is larger than the sum of its proper divisors (68692).

78488 is a wasteful number, since it uses less digits than its factorization.

78488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9817 (or 9813 counting only the distinct ones).

The product of its digits is 14336, while the sum is 35.

The square root of 78488 is about 280.1570987857. The cubic root of 78488 is about 42.8155066530.

Subtracting 78488 from its reverse (88487), we obtain a palindrome (9999).

The spelling of 78488 in words is "seventy-eight thousand, four hundred eighty-eight".