7247605 has 4 divisors (see below), whose sum is σ = 8697132. Its totient is φ = 5798080.

The previous prime is 7247587. The next prime is 7247623. The reversal of 7247605 is 5067427.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5067427 = 127 ⋅39901.

It is an interprime number because it is at equal distance from previous prime (7247587) and next prime (7247623).

It can be written as a sum of positive squares in 2 ways, for example, as 4498641 + 2748964 = 2121^2 + 1658^2 .

It is not a de Polignac number, because 7247605 - 2⁵ = 7247573 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 724756 + ... + 724765.

It is an arithmetic number, because the mean of its divisors is an integer number (2174283).

Almost surely, 2^7247605 is an apocalyptic number.

It is an amenable number.

7247605 is a deficient number, since it is larger than the sum of its proper divisors (1449527).

7247605 is a wasteful number, since it uses less digits than its factorization.

7247605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1449526.

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 7247605 is about 2692.1376264968. The cubic root of 7247605 is about 193.5225176162.

The spelling of 7247605 in words is "seven million, two hundred forty-seven thousand, six hundred five".