8437942 has 4 divisors (see below), whose sum is σ = 12656916. Its totient is φ = 4218970.

The previous prime is 8437939. The next prime is 8437943. The reversal of 8437942 is 2497348.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8437943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2109484 + ... + 2109487.

It is an arithmetic number, because the mean of its divisors is an integer number (3164229).

Almost surely, 2^8437942 is an apocalyptic number.

8437942 is a deficient number, since it is larger than the sum of its proper divisors (4218974).

8437942 is a wasteful number, since it uses less digits than its factorization.

8437942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4218973.

The product of its digits is 48384, while the sum is 37.

The square root of 8437942 is about 2904.8135912654. The cubic root of 8437942 is about 203.5848760643.

The spelling of 8437942 in words is "eight million, four hundred thirty-seven thousand, nine hundred forty-two".