196677457 has 4 divisors (see below), whose sum is σ = 197006400. Its totient is φ = 196348516.

The previous prime is 196677433. The next prime is 196677461. The reversal of 196677457 is 754776691.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 196677457 - 2¹⁵ = 196644689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (196677427) 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, 163573 + ... + 164770.

It is an arithmetic number, because the mean of its divisors is an integer number (49251600).

Almost surely, 2^196677457 is an apocalyptic number.

It is an amenable number.

196677457 is a deficient number, since it is larger than the sum of its proper divisors (328943).

196677457 is an equidigital number, since it uses as much as digits as its factorization.

196677457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328942.

The product of its digits is 2222640, while the sum is 52.

The square root of 196677457 is about 14024.1740220235. The cubic root of 196677457 is about 581.5470558984.

The spelling of 196677457 in words is "one hundred ninety-six million, six hundred seventy-seven thousand, four hundred fifty-seven".