78431003 has 8 divisors (see below), whose sum is σ = 89986272. Its totient is φ = 66963456.

The previous prime is 78430949. The next prime is 78431029. The reversal of 78431003 is 30013487.

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

It is not a de Polignac number, because 78431003 - 2¹⁶ = 78365467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78431053) 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, 20000 + ... + 23597.

It is an arithmetic number, because the mean of its divisors is an integer number (11248284).

Almost surely, 2^78431003 is an apocalyptic number.

78431003 is a deficient number, since it is larger than the sum of its proper divisors (11555269).

78431003 is a wasteful number, since it uses less digits than its factorization.

78431003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43861.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 78431003 is about 8856.1279913967. The cubic root of 78431003 is about 428.0514011548.

The spelling of 78431003 in words is "seventy-eight million, four hundred thirty-one thousand, three".