6435481 has 4 divisors (see below), whose sum is σ = 6930532. Its totient is φ = 5940432.

The previous prime is 6435479. The next prime is 6435487. The reversal of 6435481 is 1845346.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 265225 + 6170256 = 515^2 + 2484^2 .

It is a cyclic number.

It is not a de Polignac number, because 6435481 - 2¹ = 6435479 is a prime.

It is a super-2 number, since 2×6435481² = 82830831402722, which contains 22 as substring.

It is a Duffinian number.

6435481 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6435487) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 247506 + ... + 247531.

It is an arithmetic number, because the mean of its divisors is an integer number (1732633).

Almost surely, 2^6435481 is an apocalyptic number.

It is an amenable number.

6435481 is a deficient number, since it is larger than the sum of its proper divisors (495051).

6435481 is a wasteful number, since it uses less digits than its factorization.

6435481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495050.

The product of its digits is 11520, while the sum is 31.

The square root of 6435481 is about 2536.8249841091. The cubic root of 6435481 is about 186.0060216958.

The spelling of 6435481 in words is "six million, four hundred thirty-five thousand, four hundred eighty-one".