42850037 has 2 divisors, whose sum is σ = 42850038. Its totient is φ = 42850036.

The previous prime is 42850021. The next prime is 42850039. The reversal of 42850037 is 73005824.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25867396 + 16982641 = 5086^2 + 4121^2 .

It is a cyclic number.

It is not a de Polignac number, because 42850037 - 2⁴ = 42850021 is a prime.

It is a super-2 number, since 2×42850037² = 3672251341802738, which contains 22 as substring.

Together with 42850039, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 42849991 and 42850009.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42850039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21425018 + 21425019.

It is an arithmetic number, because the mean of its divisors is an integer number (21425019).

Almost surely, 2^42850037 is an apocalyptic number.

It is an amenable number.

42850037 is a deficient number, since it is larger than the sum of its proper divisors (1).

42850037 is an equidigital number, since it uses as much as digits as its factorization.

42850037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 42850037 is about 6545.9939657778. The cubic root of 42850037 is about 349.9320602822.

The spelling of 42850037 in words is "forty-two million, eight hundred fifty thousand, thirty-seven".