3642397 has 4 divisors (see below), whose sum is σ = 3973536. Its totient is φ = 3311260.

The previous prime is 3642377. The next prime is 3642427. The reversal of 3642397 is 7932463.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3642397 - 2⁷ = 3642269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3642307) 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, 165553 + ... + 165574.

It is an arithmetic number, because the mean of its divisors is an integer number (993384).

Almost surely, 2^3642397 is an apocalyptic number.

It is an amenable number.

3642397 is a deficient number, since it is larger than the sum of its proper divisors (331139).

3642397 is a wasteful number, since it uses less digits than its factorization.

3642397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331138.

The product of its digits is 27216, while the sum is 34.

The square root of 3642397 is about 1908.5064841388. The cubic root of 3642397 is about 153.8611921774.

The spelling of 3642397 in words is "three million, six hundred forty-two thousand, three hundred ninety-seven".