83942437 has 4 divisors (see below), whose sum is σ = 88360480. Its totient is φ = 79524396.

The previous prime is 83942429. The next prime is 83942459. The reversal of 83942437 is 73424938.

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 83942437 - 2³ = 83942429 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 83942437.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83942137) 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, 2208993 + ... + 2209030.

It is an arithmetic number, because the mean of its divisors is an integer number (22090120).

Almost surely, 2^83942437 is an apocalyptic number.

It is an amenable number.

83942437 is a deficient number, since it is larger than the sum of its proper divisors (4418043).

83942437 is a wasteful number, since it uses less digits than its factorization.

83942437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4418042.

The product of its digits is 145152, while the sum is 40.

The square root of 83942437 is about 9162.0105326287. The cubic root of 83942437 is about 437.8518521366.

The spelling of 83942437 in words is "eighty-three million, nine hundred forty-two thousand, four hundred thirty-seven".