3271451993 has 4 divisors (see below), whose sum is σ = 3274072500. Its totient is φ = 3268831488.

The previous prime is 3271451969. The next prime is 3271451999. The reversal of 3271451993 is 3991541723.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3991541723 = 13 ⋅307041671.

It can be written as a sum of positive squares in 2 ways, for example, as 711395584 + 2560056409 = 26672^2 + 50597^2 .

It is a cyclic number.

It is not a de Polignac number, because 3271451993 - 2¹² = 3271447897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3271451999) 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, 1308380 + ... + 1310877.

It is an arithmetic number, because the mean of its divisors is an integer number (818518125).

Almost surely, 2^3271451993 is an apocalyptic number.

It is an amenable number.

3271451993 is a deficient number, since it is larger than the sum of its proper divisors (2620507).

3271451993 is a wasteful number, since it uses less digits than its factorization.

3271451993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2620506.

The product of its digits is 204120, while the sum is 44.

The square root of 3271451993 is about 57196.6082298592. The cubic root of 3271451993 is about 1484.4999382678.

The spelling of 3271451993 in words is "three billion, two hundred seventy-one million, four hundred fifty-one thousand, nine hundred ninety-three".