7842998 has 4 divisors (see below), whose sum is σ = 11764500. Its totient is φ = 3921498.

The previous prime is 7842973. The next prime is 7843009. The reversal of 7842998 is 8992487.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8992487 = 7 ⋅1284641.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1960748 + ... + 1960751.

It is an arithmetic number, because the mean of its divisors is an integer number (2941125).

Almost surely, 2^7842998 is an apocalyptic number.

7842998 is a deficient number, since it is larger than the sum of its proper divisors (3921502).

7842998 is a wasteful number, since it uses less digits than its factorization.

7842998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3921501.

The product of its digits is 290304, while the sum is 47.

The square root of 7842998 is about 2800.5353059728. The cubic root of 7842998 is about 198.6829965457.

The spelling of 7842998 in words is "seven million, eight hundred forty-two thousand, nine hundred ninety-eight".