1003521864 has 32 divisors (see below), whose sum is σ = 2515662720. Its totient is φ = 333592896.

The previous prime is 1003521859. The next prime is 1003521877. The reversal of 1003521864 is 4681253001.

It is a super-2 number, since 2×1003521864² = 2014112263052068992, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48159 + ... + 65774.

It is an arithmetic number, because the mean of its divisors is an integer number (78614460).

Almost surely, 2^1003521864 is an apocalyptic number.

It is an amenable number.

1003521864 is an abundant number, since it is smaller than the sum of its proper divisors (1512140856).

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

1003521864 is a wasteful number, since it uses less digits than its factorization.

1003521864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114309 (or 114305 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 1003521864 is about 31678.4132178365. The cubic root of 1003521864 is about 1001.1725791873.

Adding to 1003521864 its reverse (4681253001), we get a palindrome (5684774865).

The spelling of 1003521864 in words is "one billion, three million, five hundred twenty-one thousand, eight hundred sixty-four".