73998061 has 4 divisors (see below), whose sum is σ = 77215392. Its totient is φ = 70780732.

The previous prime is 73998031. The next prime is 73998077. The reversal of 73998061 is 16089937.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 73998061 - 2⁷ = 73997933 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 73997999 and 73998017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73998011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1608631 + ... + 1608676.

It is an arithmetic number, because the mean of its divisors is an integer number (19303848).

Almost surely, 2^73998061 is an apocalyptic number.

It is an amenable number.

73998061 is a deficient number, since it is larger than the sum of its proper divisors (3217331).

73998061 is a wasteful number, since it uses less digits than its factorization.

73998061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3217330.

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 73998061 is about 8602.2125642186. The cubic root of 73998061 is about 419.8299784234.

The spelling of 73998061 in words is "seventy-three million, nine hundred ninety-eight thousand, sixty-one".