537897864 has 128 divisors (see below), whose sum is σ = 1598054400. Its totient is φ = 147640320.

The previous prime is 537897863. The next prime is 537897907. The reversal of 537897864 is 468798735.

It is a super-2 number, since 2×537897864² = 578668224191524992, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (537897863) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 931944 + ... + 932520.

It is an arithmetic number, because the mean of its divisors is an integer number (12484800).

Almost surely, 2^537897864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 537897864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (799027200).

537897864 is an abundant number, since it is smaller than the sum of its proper divisors (1060156536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

537897864 is a wasteful number, since it uses less digits than its factorization.

537897864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 803 (or 799 counting only the distinct ones).

The product of its digits is 10160640, while the sum is 57.

The square root of 537897864 is about 23192.6252071645. The cubic root of 537897864 is about 813.2672302871.

The spelling of 537897864 in words is "five hundred thirty-seven million, eight hundred ninety-seven thousand, eight hundred sixty-four".