73013236 has 12 divisors (see below), whose sum is σ = 127973412. Its totient is φ = 36449408.

The previous prime is 73013209. The next prime is 73013261. The reversal of 73013236 is 63231037.

It can be written as a sum of positive squares in 2 ways, for example, as 50979600 + 22033636 = 7140^2 + 4694^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 73013236.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11365 + ... + 16588.

It is an arithmetic number, because the mean of its divisors is an integer number (10664451).

Almost surely, 2^73013236 is an apocalyptic number.

It is an amenable number.

73013236 is a deficient number, since it is larger than the sum of its proper divisors (54960176).

73013236 is a wasteful number, since it uses less digits than its factorization.

73013236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28610 (or 28608 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 25.

The square root of 73013236 is about 8544.7782885222. The cubic root of 73013236 is about 417.9591773507.

The spelling of 73013236 in words is "seventy-three million, thirteen thousand, two hundred thirty-six".