535677421 has 2 divisors, whose sum is σ = 535677422. Its totient is φ = 535677420.

The previous prime is 535677419. The next prime is 535677451. The reversal of 535677421 is 124776535.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 270964521 + 264712900 = 16461^2 + 16270^2 .

It is a cyclic number.

It is not a de Polignac number, because 535677421 - 2¹ = 535677419 is a prime.

It is a super-2 number, since 2×535677421² = 573900598738422482, which contains 22 as substring.

Together with 535677419, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (535677451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 267838710 + 267838711.

It is an arithmetic number, because the mean of its divisors is an integer number (267838711).

Almost surely, 2^535677421 is an apocalyptic number.

It is an amenable number.

535677421 is a deficient number, since it is larger than the sum of its proper divisors (1).

535677421 is an equidigital number, since it uses as much as digits as its factorization.

535677421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 176400, while the sum is 40.

The square root of 535677421 is about 23144.7061117656. The cubic root of 535677421 is about 812.1466309045.

The spelling of 535677421 in words is "five hundred thirty-five million, six hundred seventy-seven thousand, four hundred twenty-one".