78872043 has 4 divisors (see below), whose sum is σ = 105162728. Its totient is φ = 52581360.

The previous prime is 78872041. The next prime is 78872051. The reversal of 78872043 is 34027887.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34027887 = 3 ⋅11342629.

It is not a de Polignac number, because 78872043 - 2¹ = 78872041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 78871992 and 78872010.

It is not an unprimeable number, because it can be changed into a prime (78872041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13145338 + ... + 13145343.

It is an arithmetic number, because the mean of its divisors is an integer number (26290682).

Almost surely, 2^78872043 is an apocalyptic number.

78872043 is a deficient number, since it is larger than the sum of its proper divisors (26290685).

78872043 is a wasteful number, since it uses less digits than its factorization.

78872043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26290684.

The product of its (nonzero) digits is 75264, while the sum is 39.

The square root of 78872043 is about 8880.9933566015. The cubic root of 78872043 is about 428.8522537720.

The spelling of 78872043 in words is "seventy-eight million, eight hundred seventy-two thousand, forty-three".