7983678 has 16 divisors (see below), whose sum is σ = 16482816. Its totient is φ = 2575320.

The previous prime is 7983673. The next prime is 7983683. The reversal of 7983678 is 8763897.

It is an interprime number because it is at equal distance from previous prime (7983673) and next prime (7983683).

It is a super-2 number, since 2×7983678² = 127478228815368, which contains 22 as substring.

It is a d-powerful number, because it can be written as 7⁶ + 9² + 8³ + 3⁷ + 6⁴ + 7⁸ + 8⁷ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7983673) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21276 + ... + 21647.

It is an arithmetic number, because the mean of its divisors is an integer number (1030176).

Almost surely, 2^7983678 is an apocalyptic number.

7983678 is an abundant number, since it is smaller than the sum of its proper divisors (8499138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7983678 is a wasteful number, since it uses less digits than its factorization.

7983678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42959.

The product of its digits is 508032, while the sum is 48.

The square root of 7983678 is about 2825.5403023139. The cubic root of 7983678 is about 199.8638907257.

The spelling of 7983678 in words is "seven million, nine hundred eighty-three thousand, six hundred seventy-eight".