7728395 has 8 divisors (see below), whose sum is σ = 9426480. Its totient is φ = 6081120.

The previous prime is 7728389. The next prime is 7728397. The reversal of 7728395 is 5938277.

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

It is not a de Polignac number, because 7728395 - 2⁸ = 7728139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7728397) 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, 12365 + ... + 12974.

It is an arithmetic number, because the mean of its divisors is an integer number (1178310).

Almost surely, 2^7728395 is an apocalyptic number.

7728395 is a deficient number, since it is larger than the sum of its proper divisors (1698085).

7728395 is a wasteful number, since it uses less digits than its factorization.

7728395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25405.

The product of its digits is 105840, while the sum is 41.

The square root of 7728395 is about 2779.9991007193. Note that the first 3 decimals coincide. The cubic root of 7728395 is about 197.7105163299.

The spelling of 7728395 in words is "seven million, seven hundred twenty-eight thousand, three hundred ninety-five".