78470229 has 16 divisors (see below), whose sum is σ = 107710848. Its totient is φ = 50778432.

The previous prime is 78470219. The next prime is 78470237. The reversal of 78470229 is 92207487.

It is not a de Polignac number, because 78470229 - 2¹⁶ = 78404693 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78470219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88024 + ... + 88910.

It is an arithmetic number, because the mean of its divisors is an integer number (6731928).

Almost surely, 2^78470229 is an apocalyptic number.

It is an amenable number.

78470229 is a deficient number, since it is larger than the sum of its proper divisors (29240619).

78470229 is a wasteful number, since it uses less digits than its factorization.

78470229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1724.

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 78470229 is about 8858.3423392867. The cubic root of 78470229 is about 428.1227502608.

The spelling of 78470229 in words is "seventy-eight million, four hundred seventy thousand, two hundred twenty-nine".