73215016 has 24 divisors (see below), whose sum is σ = 159691770. Its totient is φ = 31377696.

The previous prime is 73215011. The next prime is 73215017. The reversal of 73215016 is 61051237.

It can be written as a sum of positive squares in only one way, i.e., 73170916 + 44100 = 8554^2 + 210^2 .

It is not an unprimeable number, because it can be changed into a prime (73215011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 92995 + ... + 93778.

Almost surely, 2^73215016 is an apocalyptic number.

It is an amenable number.

73215016 is an abundant number, since it is smaller than the sum of its proper divisors (86476754).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

73215016 is a wasteful number, since it uses less digits than its factorization.

73215016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186793 (or 186782 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 73215016 is about 8556.5773531243. The cubic root of 73215016 is about 418.3438483871.

The spelling of 73215016 in words is "seventy-three million, two hundred fifteen thousand, sixteen".