78486153 has 8 divisors (see below), whose sum is σ = 104834400. Its totient is φ = 52231008.

The previous prime is 78486119. The next prime is 78486157. The reversal of 78486153 is 35168487.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 78486153 - 2¹⁰ = 78485129 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (78486157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21283 + ... + 24696.

It is an arithmetic number, because the mean of its divisors is an integer number (13104300).

Almost surely, 2^78486153 is an apocalyptic number.

It is an amenable number.

78486153 is a deficient number, since it is larger than the sum of its proper divisors (26348247).

78486153 is a wasteful number, since it uses less digits than its factorization.

78486153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46551.

The product of its digits is 161280, while the sum is 42.

The square root of 78486153 is about 8859.2411074538. The cubic root of 78486153 is about 428.1517080182.

The spelling of 78486153 in words is "seventy-eight million, four hundred eighty-six thousand, one hundred fifty-three".