3129473 has 4 divisors (see below), whose sum is σ = 3133440. Its totient is φ = 3125508.

The previous prime is 3129463. The next prime is 3129487. The reversal of 3129473 is 3749213.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3129473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3129443) 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, 353 + ... + 2526.

It is an arithmetic number, because the mean of its divisors is an integer number (783360).

Almost surely, 2^3129473 is an apocalyptic number.

It is an amenable number.

3129473 is a deficient number, since it is larger than the sum of its proper divisors (3967).

3129473 is a wasteful number, since it uses less digits than its factorization.

3129473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3966.

The product of its digits is 4536, while the sum is 29.

The square root of 3129473 is about 1769.0316560198. The cubic root of 3129473 is about 146.2706090226.

The spelling of 3129473 in words is "three million, one hundred twenty-nine thousand, four hundred seventy-three".