7113978 has 24 divisors (see below), whose sum is σ = 15706548. Its totient is φ = 2326272.

The previous prime is 7113943. The next prime is 7113983. The reversal of 7113978 is 8793117.

It can be written as a sum of positive squares in 2 ways, for example, as 7112889 + 1089 = 2667^2 + 33^2 .

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 2775 + ... + 4682.

Almost surely, 2^7113978 is an apocalyptic number.

7113978 is an abundant number, since it is smaller than the sum of its proper divisors (8592570).

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

7113978 is a wasteful number, since it uses less digits than its factorization.

7113978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7518 (or 7515 counting only the distinct ones).

The product of its digits is 10584, while the sum is 36.

The square root of 7113978 is about 2667.2041541659. The cubic root of 7113978 is about 192.3257815435.

It can be divided in two parts, 71139 and 78, that added together give a palindrome (71217).

The spelling of 7113978 in words is "seven million, one hundred thirteen thousand, nine hundred seventy-eight".