537387649 has 2 divisors, whose sum is σ = 537387650. Its totient is φ = 537387648.

The previous prime is 537387601. The next prime is 537387677. The reversal of 537387649 is 946783735.

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., 529322049 + 8065600 = 23007^2 + 2840^2 .

It is a cyclic number.

It is not a de Polignac number, because 537387649 - 2¹³ = 537379457 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 537387596 and 537387605.

It is not a weakly prime, because it can be changed into another prime (537387679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 268693824 + 268693825.

It is an arithmetic number, because the mean of its divisors is an integer number (268693825).

Almost surely, 2^537387649 is an apocalyptic number.

It is an amenable number.

537387649 is a deficient number, since it is larger than the sum of its proper divisors (1).

537387649 is an equidigital number, since it uses as much as digits as its factorization.

537387649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3810240, while the sum is 52.

The square root of 537387649 is about 23181.6230881274. The cubic root of 537387649 is about 813.0100114405.

The spelling of 537387649 in words is "five hundred thirty-seven million, three hundred eighty-seven thousand, six hundred forty-nine".