73721134 has 8 divisors (see below), whose sum is σ = 110670480. Its totient is φ = 36830976.

The previous prime is 73721113. The next prime is 73721173. The reversal of 73721134 is 43112737.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 11539 + ... + 16750.

It is an arithmetic number, because the mean of its divisors is an integer number (13833810).

Almost surely, 2^73721134 is an apocalyptic number.

73721134 is a deficient number, since it is larger than the sum of its proper divisors (36949346).

73721134 is a wasteful number, since it uses less digits than its factorization.

73721134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29594.

The product of its digits is 3528, while the sum is 28.

The square root of 73721134 is about 8586.1012106776. The cubic root of 73721134 is about 419.3056061688.

The spelling of 73721134 in words is "seventy-three million, seven hundred twenty-one thousand, one hundred thirty-four".