7220752697 has 4 divisors (see below), whose sum is σ = 7224552996. Its totient is φ = 7216952400.

The previous prime is 7220752691. The next prime is 7220752727. The reversal of 7220752697 is 7962570227.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7962570227 = 109 ⋅73051103.

It can be written as a sum of positive squares in 2 ways, for example, as 494128441 + 6726624256 = 22229^2 + 82016^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7220752697 is a prime.

It is a super-2 number, since 2×7220752697² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7220752691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1897298 + ... + 1901099.

It is an arithmetic number, because the mean of its divisors is an integer number (1806138249).

Almost surely, 2^7220752697 is an apocalyptic number.

It is an amenable number.

7220752697 is a deficient number, since it is larger than the sum of its proper divisors (3800299).

7220752697 is a wasteful number, since it uses less digits than its factorization.

7220752697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3800298.

The product of its (nonzero) digits is 740880, while the sum is 47.

The square root of 7220752697 is about 84975.0121918202. The cubic root of 7220752697 is about 1932.8322218858.

The spelling of 7220752697 in words is "seven billion, two hundred twenty million, seven hundred fifty-two thousand, six hundred ninety-seven".