73000215 has 24 divisors (see below), whose sum is σ = 127724688. Its totient is φ = 38567040.

The previous prime is 73000211. The next prime is 73000217. The reversal of 73000215 is 51200037.

73000215 = 3819² + 3820² + ... + 3823².

It is not a de Polignac number, because 73000215 - 2² = 73000211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73000211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2766 + ... + 12395.

It is an arithmetic number, because the mean of its divisors is an integer number (5321862).

Almost surely, 2^73000215 is an apocalyptic number.

73000215 is a deficient number, since it is larger than the sum of its proper divisors (54724473).

73000215 is a wasteful number, since it uses less digits than its factorization.

73000215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15279 (or 15276 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 18.

The square root of 73000215 is about 8544.0163272316. The cubic root of 73000215 is about 417.9343299381.

The spelling of 73000215 in words is "seventy-three million, two hundred fifteen", and thus it is an aban number.