7944998 has 4 divisors (see below), whose sum is σ = 11917500. Its totient is φ = 3972498.

The previous prime is 7944991. The next prime is 7945031. The reversal of 7944998 is 8994497.

It is a semiprime because it is the product of two primes.

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7944991) 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 as a sum of consecutive naturals, namely, 1986248 + ... + 1986251.

It is an arithmetic number, because the mean of its divisors is an integer number (2979375).

Almost surely, 2^7944998 is an apocalyptic number.

7944998 is a deficient number, since it is larger than the sum of its proper divisors (3972502).

7944998 is a wasteful number, since it uses less digits than its factorization.

7944998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3972501.

The product of its digits is 653184, while the sum is 50.

The square root of 7944998 is about 2818.6872831160. The cubic root of 7944998 is about 199.5405955457.

The spelling of 7944998 in words is "seven million, nine hundred forty-four thousand, nine hundred ninety-eight".