537303421 has 2 divisors, whose sum is σ = 537303422. Its totient is φ = 537303420.

The previous prime is 537303407. The next prime is 537303457. The reversal of 537303421 is 124303735.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 341695225 + 195608196 = 18485^2 + 13986^2 .

It is a cyclic number.

It is not a de Polignac number, because 537303421 - 2¹³ = 537295229 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 537303421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (537303461) 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, 268651710 + 268651711.

It is an arithmetic number, because the mean of its divisors is an integer number (268651711).

Almost surely, 2^537303421 is an apocalyptic number.

It is an amenable number.

537303421 is a deficient number, since it is larger than the sum of its proper divisors (1).

537303421 is an equidigital number, since it uses as much as digits as its factorization.

537303421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 28.

The square root of 537303421 is about 23179.8063192944. The cubic root of 537303421 is about 812.9675332374.

The spelling of 537303421 in words is "five hundred thirty-seven million, three hundred three thousand, four hundred twenty-one".