2475991 has 8 divisors (see below), whose sum is σ = 2927520. Its totient is φ = 2048928.

The previous prime is 2475989. The next prime is 2476009. The reversal of 2475991 is 1995742.

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

It is not a de Polignac number, because 2475991 - 2¹ = 2475989 is a prime.

It is a super-2 number, since 2×2475991² = 12261062864162, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2¹⁹ + 4¹⁰ + 7⁷ + 5⁷ + 9³ + 9³ + 1 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2475991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2475911) 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, 5896 + ... + 6301.

It is an arithmetic number, because the mean of its divisors is an integer number (365940).

2^2475991 is an apocalyptic number.

2475991 is a deficient number, since it is larger than the sum of its proper divisors (451529).

2475991 is a wasteful number, since it uses less digits than its factorization.

2475991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12233.

The product of its digits is 22680, while the sum is 37.

The square root of 2475991 is about 1573.5282012090. The cubic root of 2475991 is about 135.2850128533.

Subtracting from 2475991 its reverse (1995742), we obtain a square (480249 = 693²).

The spelling of 2475991 in words is "two million, four hundred seventy-five thousand, nine hundred ninety-one".