73000036 has 12 divisors (see below), whose sum is σ = 127911420. Its totient is φ = 36453920.

The previous prime is 73000019. The next prime is 73000043. The reversal of 73000036 is 63000037.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 19855936 + 53144100 = 4456^2 + 7290^2 .

It is a junction number, because it is equal to n+sod(n) for n = 72999977 and 73000022.

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, 7831 + ... + 14398.

It is an arithmetic number, because the mean of its divisors is an integer number (10659285).

Almost surely, 2^73000036 is an apocalyptic number.

It is an amenable number.

73000036 is a deficient number, since it is larger than the sum of its proper divisors (54911384).

73000036 is a wasteful number, since it uses less digits than its factorization.

73000036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23054 (or 23052 counting only the distinct ones).

The product of its (nonzero) digits is 378, while the sum is 19.

The square root of 73000036 is about 8544.0058520579. The cubic root of 73000036 is about 417.9339883396.

Subtracting from 73000036 its reverse (63000037), we obtain a palindrome (9999999).

The spelling of 73000036 in words is "seventy-three million, thirty-six", and thus it is an aban number and an uban number.