73089031 has 4 divisors (see below), whose sum is σ = 73200600. Its totient is φ = 72977464.

The previous prime is 73089017. The next prime is 73089047. The reversal of 73089031 is 13098037.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13098037 = 37 ⋅354001.

It is a cyclic number.

It is not a de Polignac number, because 73089031 - 2¹¹ = 73086983 is a prime.

It is a super-2 number, since 2×73089031² = 10684012905037922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 73088984 and 73089002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73089011) 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, 54796 + ... + 56113.

It is an arithmetic number, because the mean of its divisors is an integer number (18300150).

Almost surely, 2^73089031 is an apocalyptic number.

73089031 is a deficient number, since it is larger than the sum of its proper divisors (111569).

73089031 is a wasteful number, since it uses less digits than its factorization.

73089031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111568.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 73089031 is about 8549.2123028967. The cubic root of 73089031 is about 418.1037550640.

The spelling of 73089031 in words is "seventy-three million, eighty-nine thousand, thirty-one".