2278479 has 8 divisors (see below), whose sum is σ = 3472000. Its totient is φ = 1301976.

The previous prime is 2278477. The next prime is 2278481. The reversal of 2278479 is 9748722.

It is an interprime number because it is at equal distance from previous prime (2278477) and next prime (2278481).

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

It is not a de Polignac number, because 2278479 - 2¹ = 2278477 is a prime.

It is a d-powerful number, because it can be written as 2¹⁷ + 2²¹ + 7³ + 8⁵ + 4⁴ + 7⁵ + 9² .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2278477) 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, 54229 + ... + 54270.

It is an arithmetic number, because the mean of its divisors is an integer number (434000).

2^2278479 is an apocalyptic number.

2278479 is a deficient number, since it is larger than the sum of its proper divisors (1193521).

2278479 is a wasteful number, since it uses less digits than its factorization.

2278479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108509.

The product of its digits is 56448, while the sum is 39.

The square root of 2278479 is about 1509.4631495999. The cubic root of 2278479 is about 131.5876133548.

The spelling of 2278479 in words is "two million, two hundred seventy-eight thousand, four hundred seventy-nine".