78470141 has 4 divisors (see below), whose sum is σ = 80295072. Its totient is φ = 76645212.

The previous prime is 78470131. The next prime is 78470159. The reversal of 78470141 is 14107487.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 78470141 - 2¹⁰ = 78469117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 78470098 and 78470107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78470111) 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, 912401 + ... + 912486.

It is an arithmetic number, because the mean of its divisors is an integer number (20073768).

Almost surely, 2^78470141 is an apocalyptic number.

It is an amenable number.

78470141 is a deficient number, since it is larger than the sum of its proper divisors (1824931).

78470141 is a wasteful number, since it uses less digits than its factorization.

78470141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1824930.

The product of its (nonzero) digits is 6272, while the sum is 32.

The square root of 78470141 is about 8858.3373722161. The cubic root of 78470141 is about 428.1225902221.

The spelling of 78470141 in words is "seventy-eight million, four hundred seventy thousand, one hundred forty-one".