78129483 has 8 divisors (see below), whose sum is σ = 104442000. Its totient is φ = 51951648.

The previous prime is 78129461. The next prime is 78129487. The reversal of 78129483 is 38492187.

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

It is not a de Polignac number, because 78129483 - 2⁶ = 78129419 is a prime.

It is a super-2 number, since 2×78129483² = 12208432227694578, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78129487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32308 + ... + 34641.

It is an arithmetic number, because the mean of its divisors is an integer number (13055250).

Almost surely, 2^78129483 is an apocalyptic number.

78129483 is a deficient number, since it is larger than the sum of its proper divisors (26312517).

78129483 is a wasteful number, since it uses less digits than its factorization.

78129483 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67341.

The product of its digits is 96768, while the sum is 42.

The square root of 78129483 is about 8839.0883579700. The cubic root of 78129483 is about 427.5021633898.

The spelling of 78129483 in words is "seventy-eight million, one hundred twenty-nine thousand, four hundred eighty-three".