282474721 has 2 divisors, whose sum is σ = 282474722. Its totient is φ = 282474720.

The previous prime is 282474649. The next prime is 282474727. The reversal of 282474721 is 127474282.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 232135696 + 50339025 = 15236^2 + 7095^2 .

It is a cyclic number.

It is not a de Polignac number, because 282474721 - 2⁷ = 282474593 is a prime.

It is not a weakly prime, because it can be changed into another prime (282474727) 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 as a sum of consecutive naturals, namely, 141237360 + 141237361.

It is an arithmetic number, because the mean of its divisors is an integer number (141237361).

Almost surely, 2^282474721 is an apocalyptic number.

It is an amenable number.

282474721 is a deficient number, since it is larger than the sum of its proper divisors (1).

282474721 is an equidigital number, since it uses as much as digits as its factorization.

282474721 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 50176, while the sum is 37.

The square root of 282474721 is about 16806.9842922518. The cubic root of 282474721 is about 656.1349868767.

The spelling of 282474721 in words is "two hundred eighty-two million, four hundred seventy-four thousand, seven hundred twenty-one".