7273947 has 4 divisors (see below), whose sum is σ = 9698600. Its totient is φ = 4849296.

The previous prime is 7273927. The next prime is 7273951. The reversal of 7273947 is 7493727.

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

It is not a de Polignac number, because 7273947 - 2⁸ = 7273691 is a prime.

It is a d-powerful number, because it can be written as 7⁵ + 2¹⁷ + 7⁷ + 3⁷ + 9⁶ + 4⁶ + 7⁸ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7273927) 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, 1212322 + ... + 1212327.

It is an arithmetic number, because the mean of its divisors is an integer number (2424650).

Almost surely, 2^7273947 is an apocalyptic number.

7273947 is a deficient number, since it is larger than the sum of its proper divisors (2424653).

7273947 is a wasteful number, since it uses less digits than its factorization.

7273947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2424652.

The product of its digits is 74088, while the sum is 39.

The square root of 7273947 is about 2697.0255838609. The cubic root of 7273947 is about 193.7566918258.

The spelling of 7273947 in words is "seven million, two hundred seventy-three thousand, nine hundred forty-seven".