7942237 has 4 divisors (see below), whose sum is σ = 7948096. Its totient is φ = 7936380.

The previous prime is 7942223. The next prime is 7942243. The reversal of 7942237 is 7322497.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 7942237 - 2¹⁵ = 7909469 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 (7942267) 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, 268 + ... + 3994.

It is an arithmetic number, because the mean of its divisors is an integer number (1987024).

Almost surely, 2^7942237 is an apocalyptic number.

It is an amenable number.

7942237 is a deficient number, since it is larger than the sum of its proper divisors (5859).

7942237 is a wasteful number, since it uses less digits than its factorization.

7942237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5858.

The product of its digits is 21168, while the sum is 34.

The square root of 7942237 is about 2818.1974735636. The cubic root of 7942237 is about 199.5174784677.

The spelling of 7942237 in words is "seven million, nine hundred forty-two thousand, two hundred thirty-seven".