7879278 has 24 divisors (see below), whose sum is σ = 17322984. Its totient is φ = 2387440.

The previous prime is 7879253. The next prime is 7879303. The reversal of 7879278 is 8729787.

It is an interprime number because it is at equal distance from previous prime (7879253) and next prime (7879303).

It is a congruent 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, 4701 + ... + 6152.

It is an arithmetic number, because the mean of its divisors is an integer number (721791).

Almost surely, 2^7879278 is an apocalyptic number.

7879278 is an abundant number, since it is smaller than the sum of its proper divisors (9443706).

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

7879278 is a wasteful number, since it uses less digits than its factorization.

7879278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10880 (or 10869 counting only the distinct ones).

The product of its digits is 395136, while the sum is 48.

The square root of 7879278 is about 2807.0051656525. The cubic root of 7879278 is about 198.9888801308.

The spelling of 7879278 in words is "seven million, eight hundred seventy-nine thousand, two hundred seventy-eight".