2479775 has 6 divisors (see below), whose sum is σ = 3074952. Its totient is φ = 1983800.

The previous prime is 2479769. The next prime is 2479781. The reversal of 2479775 is 5779742.

It is an interprime number because it is at equal distance from previous prime (2479769) and next prime (2479781).

It is not a de Polignac number, because 2479775 - 2¹² = 2475679 is a prime.

It is a super-2 number, since 2×2479775² = 12298568101250, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2²¹ + 4⁹ + 7³ + 9² + 7⁴ + 7⁶ + 5 .

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 49571 + ... + 49620.

It is an arithmetic number, because the mean of its divisors is an integer number (512492).

2^2479775 is an apocalyptic number.

2479775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2479775 is a deficient number, since it is larger than the sum of its proper divisors (595177).

2479775 is an equidigital number, since it uses as much as digits as its factorization.

2479775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99201 (or 99196 counting only the distinct ones).

The product of its digits is 123480, while the sum is 41.

The square root of 2479775 is about 1574.7301356105. The cubic root of 2479775 is about 135.3538954308.

The spelling of 2479775 in words is "two million, four hundred seventy-nine thousand, seven hundred seventy-five".