7868998 has 4 divisors (see below), whose sum is σ = 11803500. Its totient is φ = 3934498.

The previous prime is 7868969. The next prime is 7868999. The reversal of 7868998 is 8998687.

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

It is a super-2 number, since 2×7868998² = 123842259048008, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7868999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1967248 + ... + 1967251.

It is an arithmetic number, because the mean of its divisors is an integer number (2950875).

Almost surely, 2^7868998 is an apocalyptic number.

7868998 is a deficient number, since it is larger than the sum of its proper divisors (3934502).

7868998 is a wasteful number, since it uses less digits than its factorization.

7868998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3934501.

The product of its digits is 1741824, while the sum is 55.

The square root of 7868998 is about 2805.1734349234. The cubic root of 7868998 is about 198.9023029952.

It can be divided in two parts, 78689 and 98, that added together give a palindrome (78787).

The spelling of 7868998 in words is "seven million, eight hundred sixty-eight thousand, nine hundred ninety-eight".