4412781 has 6 divisors (see below), whose sum is σ = 6374030. Its totient is φ = 2941848.

The previous prime is 4412773. The next prime is 4412797. The reversal of 4412781 is 1872144.

It can be written as a sum of positive squares in only one way, i.e., 4137156 + 275625 = 2034^2 + 525^2 .

It is not a de Polignac number, because 4412781 - 2³ = 4412773 is a prime.

It is a super-2 number, since 2×4412781² = 38945272307922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

4412781 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4412081) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 245146 + ... + 245163.

Almost surely, 2^4412781 is an apocalyptic number.

It is an amenable number.

4412781 is a deficient number, since it is larger than the sum of its proper divisors (1961249).

4412781 is a wasteful number, since it uses less digits than its factorization.

4412781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490315 (or 490312 counting only the distinct ones).

The product of its digits is 1792, while the sum is 27.

The square root of 4412781 is about 2100.6620385012. The cubic root of 4412781 is about 164.0227635466.

The spelling of 4412781 in words is "four million, four hundred twelve thousand, seven hundred eighty-one".