3521787897 has 16 divisors (see below), whose sum is σ = 4745089152. Its totient is φ = 2323282560.

The previous prime is 3521787877. The next prime is 3521787931. The reversal of 3521787897 is 7987871253.

It is not a de Polignac number, because 3521787897 - 2¹⁵ = 3521755129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3521787877) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116772 + ... + 143802.

It is an arithmetic number, because the mean of its divisors is an integer number (296568072).

Almost surely, 2^3521787897 is an apocalyptic number.

It is an amenable number.

3521787897 is a deficient number, since it is larger than the sum of its proper divisors (1223301255).

3521787897 is a wasteful number, since it uses less digits than its factorization.

3521787897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27488.

The product of its digits is 5927040, while the sum is 57.

The square root of 3521787897 is about 59344.6534828539. The cubic root of 3521787897 is about 1521.4384894729.

The spelling of 3521787897 in words is "three billion, five hundred twenty-one million, seven hundred eighty-seven thousand, eight hundred ninety-seven".