73206919 has 2 divisors, whose sum is σ = 73206920. Its totient is φ = 73206918.

The previous prime is 73206869. The next prime is 73206983. The reversal of 73206919 is 91960237.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 73206919 - 2¹¹ = 73204871 is a prime.

It is a super-2 number, since 2×73206919² = 10718505978945122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73206989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36603459 + 36603460.

It is an arithmetic number, because the mean of its divisors is an integer number (36603460).

Almost surely, 2^73206919 is an apocalyptic number.

73206919 is a deficient number, since it is larger than the sum of its proper divisors (1).

73206919 is an equidigital number, since it uses as much as digits as its factorization.

73206919 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20412, while the sum is 37.

The square root of 73206919 is about 8556.1041952515. The cubic root of 73206919 is about 418.3284259815.

It can be divided in two parts, 7320 and 6919, that multiplied together give a triangular number (50647080 = T₁₀₀₆₄).

The spelling of 73206919 in words is "seventy-three million, two hundred six thousand, nine hundred nineteen".