78645003 has 8 divisors (see below), whose sum is σ = 104959488. Its totient is φ = 52380264.

The previous prime is 78644989. The next prime is 78645019. The reversal of 78645003 is 30054687.

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

It is not a de Polignac number, because 78645003 - 2¹⁰ = 78643979 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (78645403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8575 + ... + 15192.

It is an arithmetic number, because the mean of its divisors is an integer number (13119936).

Almost surely, 2^78645003 is an apocalyptic number.

78645003 is a deficient number, since it is larger than the sum of its proper divisors (26314485).

78645003 is a wasteful number, since it uses less digits than its factorization.

78645003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24873.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 78645003 is about 8868.2017906676. The cubic root of 78645003 is about 428.4403621910.

The spelling of 78645003 in words is "seventy-eight million, six hundred forty-five thousand, three".