3495307821 has 8 divisors (see below), whose sum is σ = 4662773280. Its totient is φ = 2329023792.

The previous prime is 3495307819. The next prime is 3495307883. The reversal of 3495307821 is 1287035943.

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

It is not a de Polignac number, because 3495307821 - 2¹ = 3495307819 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3495300821) 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, 288430 + ... + 300303.

It is an arithmetic number, because the mean of its divisors is an integer number (582846660).

Almost surely, 2^3495307821 is an apocalyptic number.

It is an amenable number.

3495307821 is a deficient number, since it is larger than the sum of its proper divisors (1167465459).

3495307821 is a wasteful number, since it uses less digits than its factorization.

3495307821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590715.

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 3495307821 is about 59121.1283806390. The cubic root of 3495307821 is about 1517.6156958943.

The spelling of 3495307821 in words is "three billion, four hundred ninety-five million, three hundred seven thousand, eight hundred twenty-one".