31104673 has 4 divisors (see below), whose sum is σ = 31228848. Its totient is φ = 30980500.

The previous prime is 31104649. The next prime is 31104701. The reversal of 31104673 is 37640113.

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, and also an emirpimes, since its reverse is a distinct semiprime: 37640113 = 7 ⋅5377159.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31104673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31104173) 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, 61711 + ... + 62212.

It is an arithmetic number, because the mean of its divisors is an integer number (7807212).

Almost surely, 2^31104673 is an apocalyptic number.

It is an amenable number.

31104673 is a deficient number, since it is larger than the sum of its proper divisors (124175).

31104673 is a wasteful number, since it uses less digits than its factorization.

31104673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124174.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 31104673 is about 5577.1563542723. The cubic root of 31104673 is about 314.4912354972.

Adding to 31104673 its reverse (37640113), we get a palindrome (68744786).

The spelling of 31104673 in words is "thirty-one million, one hundred four thousand, six hundred seventy-three".