196649387 has 8 divisors (see below), whose sum is σ = 227146032. Its totient is φ = 168256000.

The previous prime is 196649309. The next prime is 196649429. The reversal of 196649387 is 783946691.

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

It is not a de Polignac number, because 196649387 - 2¹² = 196645291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (196649987) 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, 525614 + ... + 525987.

It is an arithmetic number, because the mean of its divisors is an integer number (28393254).

Almost surely, 2^196649387 is an apocalyptic number.

196649387 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

196649387 is a deficient number, since it is larger than the sum of its proper divisors (30496645).

196649387 is a wasteful number, since it uses less digits than its factorization.

196649387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1051629.

The product of its digits is 1959552, while the sum is 53.

The square root of 196649387 is about 14023.1732143620. The cubic root of 196649387 is about 581.5193882597.

The spelling of 196649387 in words is "one hundred ninety-six million, six hundred forty-nine thousand, three hundred eighty-seven".