73078216 has 16 divisors (see below), whose sum is σ = 137195100. Its totient is φ = 36492864.

The previous prime is 73078211. The next prime is 73078217. The reversal of 73078216 is 61287037.

It can be written as a sum of positive squares in 2 ways, for example, as 73034116 + 44100 = 8546^2 + 210^2 .

It is not an unprimeable number, because it can be changed into a prime (73078211) 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, 1470 + ... + 12178.

Almost surely, 2^73078216 is an apocalyptic number.

It is an amenable number.

73078216 is a deficient number, since it is larger than the sum of its proper divisors (64116884).

73078216 is a wasteful number, since it uses less digits than its factorization.

73078216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11568 (or 11564 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 73078216 is about 8548.5797650838. The cubic root of 73078216 is about 418.0831317453.

The spelling of 73078216 in words is "seventy-three million, seventy-eight thousand, two hundred sixteen".