196439365 has 8 divisors (see below), whose sum is σ = 237310200. Its totient is φ = 156096192.

The previous prime is 196439363. The next prime is 196439371. The reversal of 196439365 is 563934691.

It can be written as a sum of positive squares in 4 ways, for example, as 2505889 + 193933476 = 1583^2 + 13926^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 196439365 - 2¹ = 196439363 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196439363) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131094 + ... + 132583.

It is an arithmetic number, because the mean of its divisors is an integer number (29663775).

Almost surely, 2^196439365 is an apocalyptic number.

It is an amenable number.

196439365 is a deficient number, since it is larger than the sum of its proper divisors (40870835).

196439365 is a wasteful number, since it uses less digits than its factorization.

196439365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263831.

The product of its digits is 524880, while the sum is 46.

The square root of 196439365 is about 14015.6828231806. The cubic root of 196439365 is about 581.3122931657.

The spelling of 196439365 in words is "one hundred ninety-six million, four hundred thirty-nine thousand, three hundred sixty-five".