78650143 has 16 divisors (see below), whose sum is σ = 97838496. Its totient is φ = 62115840.

The previous prime is 78650141. The next prime is 78650191. The reversal of 78650143 is 34105687.

It is a cyclic number.

It is not a de Polignac number, because 78650143 - 2¹ = 78650141 is a prime.

It is a super-3 number, since 3×78650143³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 78650099 and 78650108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78650141) 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 15 ways as a sum of consecutive naturals, for example, 13746 + ... + 18607.

It is an arithmetic number, because the mean of its divisors is an integer number (6114906).

Almost surely, 2^78650143 is an apocalyptic number.

78650143 is a deficient number, since it is larger than the sum of its proper divisors (19188353).

78650143 is a wasteful number, since it uses less digits than its factorization.

78650143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32394.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 78650143 is about 8868.4915853825. The cubic root of 78650143 is about 428.4496958439.

The spelling of 78650143 in words is "seventy-eight million, six hundred fifty thousand, one hundred forty-three".