7642753 has 4 divisors (see below), whose sum is σ = 7712980. Its totient is φ = 7572528.

The previous prime is 7642729. The next prime is 7642781. The reversal of 7642753 is 3572467.

It is a happy number.

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 4194304 + 3448449 = 2048^2 + 1857^2 .

It is a cyclic number.

It is not a de Polignac number, because 7642753 - 2⁹ = 7642241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7642783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34950 + ... + 35167.

It is an arithmetic number, because the mean of its divisors is an integer number (1928245).

Almost surely, 2^7642753 is an apocalyptic number.

It is an amenable number.

7642753 is a deficient number, since it is larger than the sum of its proper divisors (70227).

7642753 is a wasteful number, since it uses less digits than its factorization.

7642753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70226.

The product of its digits is 35280, while the sum is 34.

The square root of 7642753 is about 2764.5529475848. The cubic root of 7642753 is about 196.9774940577.

The spelling of 7642753 in words is "seven million, six hundred forty-two thousand, seven hundred fifty-three".