7965998 has 4 divisors (see below), whose sum is σ = 11949000. Its totient is φ = 3982998.

The previous prime is 7965949. The next prime is 7966001. The reversal of 7965998 is 8995697.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8995697 = 821 ⋅10957.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1991498 + ... + 1991501.

It is an arithmetic number, because the mean of its divisors is an integer number (2987250).

Almost surely, 2^7965998 is an apocalyptic number.

7965998 is a deficient number, since it is larger than the sum of its proper divisors (3983002).

7965998 is a wasteful number, since it uses less digits than its factorization.

7965998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3983001.

The product of its digits is 1224720, while the sum is 53.

The square root of 7965998 is about 2822.4099631343. The cubic root of 7965998 is about 199.7162476133.

The spelling of 7965998 in words is "seven million, nine hundred sixty-five thousand, nine hundred ninety-eight".