73742563 has 8 divisors (see below), whose sum is σ = 76423680. Its totient is φ = 71070720.

The previous prime is 73742561. The next prime is 73742587. The reversal of 73742563 is 36524737.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 73742563 - 2¹ = 73742561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73742561) 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 7 ways as a sum of consecutive naturals, for example, 16606 + ... + 20572.

It is an arithmetic number, because the mean of its divisors is an integer number (9552960).

Almost surely, 2^73742563 is an apocalyptic number.

73742563 is a deficient number, since it is larger than the sum of its proper divisors (2681117).

73742563 is a wasteful number, since it uses less digits than its factorization.

73742563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4637.

The product of its digits is 105840, while the sum is 37.

The square root of 73742563 is about 8587.3490088618. The cubic root of 73742563 is about 419.3462296593.

It can be divided in two parts, 73742 and 563, that added together give a triangular number (74305 = T₃₈₅).

The spelling of 73742563 in words is "seventy-three million, seven hundred forty-two thousand, five hundred sixty-three".