1930237 has 2 divisors, whose sum is σ = 1930238. Its totient is φ = 1930236.

The previous prime is 1930219. The next prime is 1930249. The reversal of 1930237 is 7320391.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1136356 + 793881 = 1066^2 + 891^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1930237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1930297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 965118 + 965119.

It is an arithmetic number, because the mean of its divisors is an integer number (965119).

2^1930237 is an apocalyptic number.

It is an amenable number.

1930237 is a deficient number, since it is larger than the sum of its proper divisors (1).

1930237 is an equidigital number, since it uses as much as digits as its factorization.

1930237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1134, while the sum is 25.

The square root of 1930237 is about 1389.3296944930. The cubic root of 1930237 is about 124.5098028334.

The spelling of 1930237 in words is "one million, nine hundred thirty thousand, two hundred thirty-seven".