72741998 has 8 divisors (see below), whose sum is σ = 124700592. Its totient is φ = 31175136.

The previous prime is 72741989. The next prime is 72742001. The reversal of 72741998 is 89914727.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2597915 + ... + 2597942.

It is an arithmetic number, because the mean of its divisors is an integer number (15587574).

Almost surely, 2^72741998 is an apocalyptic number.

72741998 is a deficient number, since it is larger than the sum of its proper divisors (51958594).

72741998 is a wasteful number, since it uses less digits than its factorization.

72741998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5195866.

The product of its digits is 254016, while the sum is 47.

The square root of 72741998 is about 8528.8919561687. The cubic root of 72741998 is about 417.4409741216.

The spelling of 72741998 in words is "seventy-two million, seven hundred forty-one thousand, nine hundred ninety-eight".