537709685 has 8 divisors (see below), whose sum is σ = 649894560. Its totient is φ = 427072464.

The previous prime is 537709681. The next prime is 537709687. The reversal of 537709685 is 586907735.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 537709685 - 2² = 537709681 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (537709681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 386147 + ... + 387536.

It is an arithmetic number, because the mean of its divisors is an integer number (81236820).

Almost surely, 2^537709685 is an apocalyptic number.

It is an amenable number.

537709685 is a deficient number, since it is larger than the sum of its proper divisors (112184875).

537709685 is a wasteful number, since it uses less digits than its factorization.

537709685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 773827.

The product of its (nonzero) digits is 1587600, while the sum is 50.

The square root of 537709685 is about 23188.5679807961. The cubic root of 537709685 is about 813.1723810141.

The spelling of 537709685 in words is "five hundred thirty-seven million, seven hundred nine thousand, six hundred eighty-five".