3213053691 has 16 divisors (see below), whose sum is σ = 4511011200. Its totient is φ = 2028639168.

The previous prime is 3213053687. The next prime is 3213053699. The reversal of 3213053691 is 1963503123.

It is not a de Polignac number, because 3213053691 - 2² = 3213053687 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3213053699) 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, 216780 + ... + 231126.

It is an arithmetic number, because the mean of its divisors is an integer number (281938200).

Almost surely, 2^3213053691 is an apocalyptic number.

3213053691 is a deficient number, since it is larger than the sum of its proper divisors (1297957509).

3213053691 is a wasteful number, since it uses less digits than its factorization.

3213053691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18298.

The product of its (nonzero) digits is 14580, while the sum is 33.

The square root of 3213053691 is about 56683.8044859376. The cubic root of 3213053691 is about 1475.6136396850.

The spelling of 3213053691 in words is "three billion, two hundred thirteen million, fifty-three thousand, six hundred ninety-one".