7898245 has 8 divisors (see below), whose sum is σ = 9492984. Its totient is φ = 6308544.

The previous prime is 7898239. The next prime is 7898263. The reversal of 7898245 is 5428987.

It can be written as a sum of positive squares in 4 ways, for example, as 2056356 + 5841889 = 1434^2 + 2417^2 .

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 7898245 - 2⁵ = 7898213 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 5547 + ... + 6823.

It is an arithmetic number, because the mean of its divisors is an integer number (1186623).

Almost surely, 2^7898245 is an apocalyptic number.

It is an amenable number.

7898245 is a deficient number, since it is larger than the sum of its proper divisors (1594739).

7898245 is a wasteful number, since it uses less digits than its factorization.

7898245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2519.

The product of its digits is 161280, while the sum is 43.

The square root of 7898245 is about 2810.3816466807. The cubic root of 7898245 is about 199.1484208779.

The spelling of 7898245 in words is "seven million, eight hundred ninety-eight thousand, two hundred forty-five".