7947998 has 8 divisors (see below), whose sum is σ = 11936808. Its totient is φ = 3969064.

The previous prime is 7947983. The next prime is 7948019. The reversal of 7947998 is 8997497.

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

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65 + ... + 3987.

It is an arithmetic number, because the mean of its divisors is an integer number (1492101).

Almost surely, 2^7947998 is an apocalyptic number.

7947998 is a deficient number, since it is larger than the sum of its proper divisors (3988810).

7947998 is a wasteful number, since it uses less digits than its factorization.

7947998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4938.

The product of its digits is 1143072, while the sum is 53.

The square root of 7947998 is about 2819.2193955065. The cubic root of 7947998 is about 199.5657076333.

The spelling of 7947998 in words is "seven million, nine hundred forty-seven thousand, nine hundred ninety-eight".