73737413 has 4 divisors (see below), whose sum is σ = 73850988. Its totient is φ = 73623840.

The previous prime is 73737397. The next prime is 73737421. The reversal of 73737413 is 31473737.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31473737 = 1009 ⋅31193.

It can be written as a sum of positive squares in 2 ways, for example, as 53684929 + 20052484 = 7327^2 + 4478^2 .

It is a cyclic number.

It is not a de Polignac number, because 73737413 - 2⁴ = 73737397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73737463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55808 + ... + 57113.

It is an arithmetic number, because the mean of its divisors is an integer number (18462747).

Almost surely, 2^73737413 is an apocalyptic number.

It is an amenable number.

73737413 is a deficient number, since it is larger than the sum of its proper divisors (113575).

73737413 is a wasteful number, since it uses less digits than its factorization.

73737413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113574.

The product of its digits is 37044, while the sum is 35.

The square root of 73737413 is about 8587.0491439143. The cubic root of 73737413 is about 419.3364673941.

The spelling of 73737413 in words is "seventy-three million, seven hundred thirty-seven thousand, four hundred thirteen".