78850143 has 12 divisors (see below), whose sum is σ = 117569088. Its totient is φ = 50870880.

The previous prime is 78850129. The next prime is 78850153. The reversal of 78850143 is 34105887.

It is not a de Polignac number, because 78850143 - 2⁸ = 78849887 is a prime.

It is a super-2 number, since 2×78850143² = 12434690102240898, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 78850098 and 78850107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78850103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 141030 + ... + 141587.

It is an arithmetic number, because the mean of its divisors is an integer number (9797424).

Almost surely, 2^78850143 is an apocalyptic number.

78850143 is a deficient number, since it is larger than the sum of its proper divisors (38718945).

78850143 is a wasteful number, since it uses less digits than its factorization.

78850143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282654 (or 282651 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 78850143 is about 8879.7603008189. The cubic root of 78850143 is about 428.8125576879.

It can be divided in two parts, 788501 and 43, that added together give a square (788544 = 888²).

The spelling of 78850143 in words is "seventy-eight million, eight hundred fifty thousand, one hundred forty-three".