196537837 has 2 divisors, whose sum is σ = 196537838. Its totient is φ = 196537836.

The previous prime is 196537823. The next prime is 196537889. The reversal of 196537837 is 738735691.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 196532361 + 5476 = 14019^2 + 74^2 .

It is a cyclic number.

It is not a de Polignac number, because 196537837 - 2¹⁹ = 196013549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (196537807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98268918 + 98268919.

It is an arithmetic number, because the mean of its divisors is an integer number (98268919).

Almost surely, 2^196537837 is an apocalyptic number.

It is an amenable number.

196537837 is a deficient number, since it is larger than the sum of its proper divisors (1).

196537837 is an equidigital number, since it uses as much as digits as its factorization.

196537837 is an evil number, because the sum of its binary digits is even.

The product of its digits is 952560, while the sum is 49.

The square root of 196537837 is about 14019.1953050095. The cubic root of 196537837 is about 581.4094112116.

The spelling of 196537837 in words is "one hundred ninety-six million, five hundred thirty-seven thousand, eight hundred thirty-seven".