3535880721 has 8 divisors (see below), whose sum is σ = 4720705824. Its totient is φ = 2354154720.

The previous prime is 3535880671. The next prime is 3535880723. The reversal of 3535880721 is 1270885353.

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

It is not a de Polignac number, because 3535880721 - 2¹⁸ = 3535618577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3535880723) 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 7 ways as a sum of consecutive naturals, for example, 772111 + ... + 776676.

It is an arithmetic number, because the mean of its divisors is an integer number (590088228).

Almost surely, 2^3535880721 is an apocalyptic number.

It is an amenable number.

3535880721 is a deficient number, since it is larger than the sum of its proper divisors (1184825103).

3535880721 is a wasteful number, since it uses less digits than its factorization.

3535880721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1549551.

The product of its (nonzero) digits is 201600, while the sum is 42.

The square root of 3535880721 is about 59463.2720340884. The cubic root of 3535880721 is about 1523.4651900105.

The spelling of 3535880721 in words is "three billion, five hundred thirty-five million, eight hundred eighty thousand, seven hundred twenty-one".