7998419 has 8 divisors (see below), whose sum is σ = 9396912. Its totient is φ = 6711840.

The previous prime is 7998409. The next prime is 7998421. The reversal of 7998419 is 9148997.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7998419 is a prime.

It is a super-2 number, since 2×7998419² = 127949412999122, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7998409) 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, 27824 + ... + 28109.

It is an arithmetic number, because the mean of its divisors is an integer number (1174614).

Almost surely, 2^7998419 is an apocalyptic number.

7998419 is a deficient number, since it is larger than the sum of its proper divisors (1398493).

7998419 is a wasteful number, since it uses less digits than its factorization.

7998419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55957.

The product of its digits is 163296, while the sum is 47.

The square root of 7998419 is about 2828.1476269813. The cubic root of 7998419 is about 199.9868241320.

The spelling of 7998419 in words is "seven million, nine hundred ninety-eight thousand, four hundred nineteen".