7652721 has 8 divisors (see below), whose sum is σ = 10647360. Its totient is φ = 4879952.

The previous prime is 7652717. The next prime is 7652731. The reversal of 7652721 is 1272567.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7652721 - 2² = 7652717 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (7652731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55386 + ... + 55523.

It is an arithmetic number, because the mean of its divisors is an integer number (1330920).

Almost surely, 2^7652721 is an apocalyptic number.

It is an amenable number.

7652721 is a deficient number, since it is larger than the sum of its proper divisors (2994639).

7652721 is a wasteful number, since it uses less digits than its factorization.

7652721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110935.

The product of its digits is 5880, while the sum is 30.

The square root of 7652721 is about 2766.3551832691. The cubic root of 7652721 is about 197.0630922998.

It can be divided in two parts, 765 and 2721, that added together give a triangular number (3486 = T₈₃).

The spelling of 7652721 in words is "seven million, six hundred fifty-two thousand, seven hundred twenty-one".