73443761 has 8 divisors (see below), whose sum is σ = 77099904. Its totient is φ = 69826240.

The previous prime is 73443703. The next prime is 73443787. The reversal of 73443761 is 16734437.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73443761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73445761) 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 7 ways as a sum of consecutive naturals, for example, 5720 + ... + 13401.

It is an arithmetic number, because the mean of its divisors is an integer number (9637488).

Almost surely, 2^73443761 is an apocalyptic number.

It is an amenable number.

73443761 is a deficient number, since it is larger than the sum of its proper divisors (3656143).

73443761 is a wasteful number, since it uses less digits than its factorization.

73443761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19311.

The product of its digits is 42336, while the sum is 35.

The square root of 73443761 is about 8569.9335470002. The cubic root of 73443761 is about 418.7790713908.

The spelling of 73443761 in words is "seventy-three million, four hundred forty-three thousand, seven hundred sixty-one".