7999505 has 16 divisors (see below), whose sum is σ = 10169280. Its totient is φ = 6030528.

The previous prime is 7999501. The next prime is 7999507. The reversal of 7999505 is 5059997.

It is a cyclic number.

It is not a de Polignac number, because 7999505 - 2² = 7999501 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7999501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5594 + ... + 6876.

It is an arithmetic number, because the mean of its divisors is an integer number (635580).

Almost surely, 2^7999505 is an apocalyptic number.

It is an amenable number.

7999505 is a deficient number, since it is larger than the sum of its proper divisors (2169775).

7999505 is a wasteful number, since it uses less digits than its factorization.

7999505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1360.

The product of its (nonzero) digits is 127575, while the sum is 44.

The square root of 7999505 is about 2828.3396189284. The cubic root of 7999505 is about 199.9958749149.

The spelling of 7999505 in words is "seven million, nine hundred ninety-nine thousand, five hundred five".