537249397 has 2 divisors, whose sum is σ = 537249398. Its totient is φ = 537249396.

The previous prime is 537249373. The next prime is 537249407. The reversal of 537249397 is 793942735.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 536339281 + 910116 = 23159^2 + 954^2 .

It is a cyclic number.

It is not a de Polignac number, because 537249397 - 2⁷ = 537249269 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 537249397.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (577249397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 268624698 + 268624699.

It is an arithmetic number, because the mean of its divisors is an integer number (268624699).

Almost surely, 2^537249397 is an apocalyptic number.

It is an amenable number.

537249397 is a deficient number, since it is larger than the sum of its proper divisors (1).

537249397 is an equidigital number, since it uses as much as digits as its factorization.

537249397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1428840, while the sum is 49.

The square root of 537249397 is about 23178.6409653370. The cubic root of 537249397 is about 812.9402852999.

The spelling of 537249397 in words is "five hundred thirty-seven million, two hundred forty-nine thousand, three hundred ninety-seven".