537493897 has 2 divisors, whose sum is σ = 537493898. Its totient is φ = 537493896.

The previous prime is 537493871. The next prime is 537493919. The reversal of 537493897 is 798394735.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 443481481 + 94012416 = 21059^2 + 9696^2 .

It is a cyclic number.

It is not a de Polignac number, because 537493897 - 2¹⁵ = 537461129 is a prime.

It is not a weakly prime, because it can be changed into another prime (537493837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 268746948 + 268746949.

It is an arithmetic number, because the mean of its divisors is an integer number (268746949).

Almost surely, 2^537493897 is an apocalyptic number.

It is an amenable number.

537493897 is a deficient number, since it is larger than the sum of its proper divisors (1).

537493897 is an equidigital number, since it uses as much as digits as its factorization.

537493897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5715360, while the sum is 55.

The square root of 537493897 is about 23183.9146176827. The cubic root of 537493897 is about 813.0635885282.

The spelling of 537493897 in words is "five hundred thirty-seven million, four hundred ninety-three thousand, eight hundred ninety-seven".