73061405 has 16 divisors (see below), whose sum is σ = 88830000. Its totient is φ = 57684480.

The previous prime is 73061381. The next prime is 73061407. The reversal of 73061405 is 50416037.

It can be written as a sum of positive squares in 8 ways, for example, as 436921 + 72624484 = 661^2 + 8522^2 .

It is not a de Polignac number, because 73061405 - 2¹⁶ = 72995869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73061407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 209171 + ... + 209519.

It is an arithmetic number, because the mean of its divisors is an integer number (5551875).

Almost surely, 2^73061405 is an apocalyptic number.

It is an amenable number.

73061405 is a deficient number, since it is larger than the sum of its proper divisors (15768595).

73061405 is a wasteful number, since it uses less digits than its factorization.

73061405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 73061405 is about 8547.5964457852. The cubic root of 73061405 is about 418.0510705058.

The spelling of 73061405 in words is "seventy-three million, sixty-one thousand, four hundred five".