2477421 has 6 divisors (see below), whose sum is σ = 3578510. Its totient is φ = 1651608.

The previous prime is 2477413. The next prime is 2477471. The reversal of 2477421 is 1247742.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2368521 + 108900 = 1539^2 + 330^2 .

It is not a de Polignac number, because 2477421 - 2³ = 2477413 is a prime.

It is a super-2 number, since 2×2477421² = 12275229622482, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2⁷ + 4 + 7³ + 7⁶ + 4⁹ + 2²¹ + 1 .

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2477411) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 137626 + ... + 137643.

2^2477421 is an apocalyptic number.

It is an amenable number.

2477421 is a deficient number, since it is larger than the sum of its proper divisors (1101089).

2477421 is a wasteful number, since it uses less digits than its factorization.

2477421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275275 (or 275272 counting only the distinct ones).

The product of its digits is 3136, while the sum is 27.

The square root of 2477421 is about 1573.9825284926. The cubic root of 2477421 is about 135.3110523040.

The spelling of 2477421 in words is "two million, four hundred seventy-seven thousand, four hundred twenty-one".