3642271 has 4 divisors (see below), whose sum is σ = 3666544. Its totient is φ = 3618000.

The previous prime is 3642269. The next prime is 3642299. The reversal of 3642271 is 1722463.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3642271 - 2¹ = 3642269 is a prime.

It is a super-2 number, since 2×3642271² = 26532276074882, which contains 22 as substring.

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 (3642241) 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, 11910 + ... + 12211.

It is an arithmetic number, because the mean of its divisors is an integer number (916636).

Almost surely, 2^3642271 is an apocalyptic number.

3642271 is a deficient number, since it is larger than the sum of its proper divisors (24273).

3642271 is a wasteful number, since it uses less digits than its factorization.

3642271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24272.

The product of its digits is 2016, while the sum is 25.

The square root of 3642271 is about 1908.4734737481. The cubic root of 3642271 is about 153.8594180038.

The spelling of 3642271 in words is "three million, six hundred forty-two thousand, two hundred seventy-one".