7730245 has 8 divisors (see below), whose sum is σ = 9764640. Its totient is φ = 5858640.

The previous prime is 7730243. The next prime is 7730249. The reversal of 7730245 is 5420377.

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

It is not a de Polignac number, because 7730245 - 2¹ = 7730243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7730243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40591 + ... + 40780.

It is an arithmetic number, because the mean of its divisors is an integer number (1220580).

Almost surely, 2^7730245 is an apocalyptic number.

It is an amenable number.

7730245 is a deficient number, since it is larger than the sum of its proper divisors (2034395).

7730245 is a wasteful number, since it uses less digits than its factorization.

7730245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81395.

The product of its (nonzero) digits is 5880, while the sum is 28.

The square root of 7730245 is about 2780.3318147300. The cubic root of 7730245 is about 197.7262908546.

The spelling of 7730245 in words is "seven million, seven hundred thirty thousand, two hundred forty-five".