73032981 has 24 divisors (see below), whose sum is σ = 118206144. Its totient is φ = 39916800.

The previous prime is 73032913. The next prime is 73032997. The reversal of 73032981 is 18923037.

It is not a de Polignac number, because 73032981 - 2⁷ = 73032853 is a prime.

It is a super-2 number, since 2×73032981² = 10667632627492722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73032581) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7420 + ... + 14181.

It is an arithmetic number, because the mean of its divisors is an integer number (4925256).

Almost surely, 2^73032981 is an apocalyptic number.

It is an amenable number.

73032981 is a deficient number, since it is larger than the sum of its proper divisors (45173163).

73032981 is a wasteful number, since it uses less digits than its factorization.

73032981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21641 (or 21634 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 73032981 is about 8545.9335944062. The cubic root of 73032981 is about 417.9968502468.

The spelling of 73032981 in words is "seventy-three million, thirty-two thousand, nine hundred eighty-one".