537636969 has 27 divisors (see below), whose sum is σ = 796048669. Its totient is φ = 349659960.

The previous prime is 537636959. The next prime is 537637013. The reversal of 537636969 is 969636735.

It is a happy number.

The square root of 537636969 is 23187.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 537636969 - 2²¹ = 535539817 is a prime.

It is a super-2 number, since 2×537636969² = 578107020871013922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (537636919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 4104034 + ... + 4104164.

Almost surely, 2^537636969 is an apocalyptic number.

537636969 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

537636969 is the 23187-th square number.

537636969 is the 11594-th centered octagonal number.

It is an amenable number.

537636969 is a deficient number, since it is larger than the sum of its proper divisors (258411700).

537636969 is an equidigital number, since it uses as much as digits as its factorization.

537636969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386 (or 193 counting only the distinct ones).

The product of its digits is 5511240, while the sum is 54.

The cubic root of 537636969 is about 813.1357234954.

The spelling of 537636969 in words is "five hundred thirty-seven million, six hundred thirty-six thousand, nine hundred sixty-nine".