196477397 has 4 divisors (see below), whose sum is σ = 196784556. Its totient is φ = 196170240.

The previous prime is 196477373. The next prime is 196477399. The reversal of 196477397 is 793774691.

196477397 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 183846481 + 12630916 = 13559^2 + 3554^2 .

It is a cyclic number.

It is not a de Polignac number, because 196477397 - 2²⁴ = 179700181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196477399) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152618 + ... + 153899.

It is an arithmetic number, because the mean of its divisors is an integer number (49196139).

Almost surely, 2^196477397 is an apocalyptic number.

It is an amenable number.

196477397 is a deficient number, since it is larger than the sum of its proper divisors (307159).

196477397 is an equidigital number, since it uses as much as digits as its factorization.

196477397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307158.

The product of its digits is 2000376, while the sum is 53.

The square root of 196477397 is about 14017.0395233801. The cubic root of 196477397 is about 581.3498060856.

The spelling of 196477397 in words is "one hundred ninety-six million, four hundred seventy-seven thousand, three hundred ninety-seven".