78488673 has 16 divisors (see below), whose sum is σ = 110232576. Its totient is φ = 49578320.

The previous prime is 78488671. The next prime is 78488681. The reversal of 78488673 is 37688487.

It is a cyclic number.

It is not a de Polignac number, because 78488673 - 2¹ = 78488671 is a prime.

It is not an unprimeable number, because it can be changed into a prime (78488671) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2068 + ... + 12698.

It is an arithmetic number, because the mean of its divisors is an integer number (6889536).

Almost surely, 2^78488673 is an apocalyptic number.

It is an amenable number.

78488673 is a deficient number, since it is larger than the sum of its proper divisors (31743903).

78488673 is a wasteful number, since it uses less digits than its factorization.

78488673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10764.

The product of its digits is 1806336, while the sum is 51.

The square root of 78488673 is about 8859.3833306839. The cubic root of 78488673 is about 428.1562902735.

The spelling of 78488673 in words is "seventy-eight million, four hundred eighty-eight thousand, six hundred seventy-three".