7212473 has 4 divisors (see below), whose sum is σ = 7311348. Its totient is φ = 7113600.

The previous prime is 7212397. The next prime is 7212487. The reversal of 7212473 is 3742127.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4892944 + 2319529 = 2212^2 + 1523^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7212473 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7212493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49328 + ... + 49473.

It is an arithmetic number, because the mean of its divisors is an integer number (1827837).

Almost surely, 2^7212473 is an apocalyptic number.

7212473 is a gapful number since it is divisible by the number (73) formed by its first and last digit.

It is an amenable number.

7212473 is a deficient number, since it is larger than the sum of its proper divisors (98875).

7212473 is an equidigital number, since it uses as much as digits as its factorization.

7212473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98874.

The product of its digits is 2352, while the sum is 26.

The square root of 7212473 is about 2685.6047736031. The cubic root of 7212473 is about 193.2093176782.

The spelling of 7212473 in words is "seven million, two hundred twelve thousand, four hundred seventy-three".