73413613 has 12 divisors (see below), whose sum is σ = 91969500. Its totient is φ = 58084992.

The previous prime is 73413581. The next prime is 73413619. The reversal of 73413613 is 31631437.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 14768649 + 58644964 = 3843^2 + 7658^2 .

It is not a de Polignac number, because 73413613 - 2⁵ = 73413581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73413619) 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 11 ways as a sum of consecutive naturals, for example, 56988 + ... + 58261.

It is an arithmetic number, because the mean of its divisors is an integer number (7664125).

Almost surely, 2^73413613 is an apocalyptic number.

It is an amenable number.

73413613 is a deficient number, since it is larger than the sum of its proper divisors (18555887).

73413613 is a wasteful number, since it uses less digits than its factorization.

73413613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115276 (or 115269 counting only the distinct ones).

The product of its digits is 4536, while the sum is 28.

The square root of 73413613 is about 8568.1744263291. The cubic root of 73413613 is about 418.7217618739.

The spelling of 73413613 in words is "seventy-three million, four hundred thirteen thousand, six hundred thirteen".