3642263 has 4 divisors (see below), whose sum is σ = 3662568. Its totient is φ = 3621960.

The previous prime is 3642251. The next prime is 3642269. The reversal of 3642263 is 3622463.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3622463 = 13 ⋅278651.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3642263 is a prime.

It is a super-2 number, since 2×3642263² = 26532159522338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3642269) 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, 9881 + ... + 10242.

It is an arithmetic number, because the mean of its divisors is an integer number (915642).

Almost surely, 2^3642263 is an apocalyptic number.

3642263 is a deficient number, since it is larger than the sum of its proper divisors (20305).

3642263 is a wasteful number, since it uses less digits than its factorization.

3642263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20304.

The product of its digits is 5184, while the sum is 26.

The square root of 3642263 is about 1908.4713778310. The cubic root of 3642263 is about 153.8593053565.

The spelling of 3642263 in words is "three million, six hundred forty-two thousand, two hundred sixty-three".