3494594021 has 4 divisors (see below), whose sum is σ = 3498121344. Its totient is φ = 3491066700.

The previous prime is 3494594011. The next prime is 3494594029. The reversal of 3494594021 is 1204954943.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3494594021 - 2¹⁴ = 3494577637 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3494594021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3494594029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1762175 + ... + 1764156.

It is an arithmetic number, because the mean of its divisors is an integer number (874530336).

Almost surely, 2^3494594021 is an apocalyptic number.

It is an amenable number.

3494594021 is a deficient number, since it is larger than the sum of its proper divisors (3527323).

3494594021 is an equidigital number, since it uses as much as digits as its factorization.

3494594021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3527322.

The product of its (nonzero) digits is 155520, while the sum is 41.

The square root of 3494594021 is about 59115.0913134709. The cubic root of 3494594021 is about 1517.5123814045.

The spelling of 3494594021 in words is "three billion, four hundred ninety-four million, five hundred ninety-four thousand, twenty-one".