3213263 has 4 divisors (see below), whose sum is σ = 3236520. Its totient is φ = 3190008.

The previous prime is 3213239. The next prime is 3213269. The reversal of 3213263 is 3623123.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3623123 = 7 ⋅517589.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3213263 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3213269) 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, 11420 + ... + 11697.

It is an arithmetic number, because the mean of its divisors is an integer number (809130).

Almost surely, 2^3213263 is an apocalyptic number.

3213263 is a deficient number, since it is larger than the sum of its proper divisors (23257).

3213263 is a wasteful number, since it uses less digits than its factorization.

3213263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23256.

The product of its digits is 648, while the sum is 20.

The square root of 3213263 is about 1792.5576699231. The cubic root of 3213263 is about 147.5645681115.

Adding to 3213263 its reverse (3623123), we get a palindrome (6836386).

The spelling of 3213263 in words is "three million, two hundred thirteen thousand, two hundred sixty-three".