536871421 has 2 divisors, whose sum is σ = 536871422. Its totient is φ = 536871420.

The previous prime is 536871389. The next prime is 536871427. The reversal of 536871421 is 124178635.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 396567396 + 140304025 = 19914^2 + 11845^2 .

It is a cyclic number.

It is not a de Polignac number, because 536871421 - 2⁵ = 536871389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (536871427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 268435710 + 268435711.

It is an arithmetic number, because the mean of its divisors is an integer number (268435711).

Almost surely, 2^536871421 is an apocalyptic number.

It is an amenable number.

536871421 is a deficient number, since it is larger than the sum of its proper divisors (1).

536871421 is an equidigital number, since it uses as much as digits as its factorization.

536871421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40320, while the sum is 37.

The square root of 536871421 is about 23170.4859897241. The cubic root of 536871421 is about 812.7495954598.

The spelling of 536871421 in words is "five hundred thirty-six million, eight hundred seventy-one thousand, four hundred twenty-one".