63677197 has 4 divisors (see below), whose sum is σ = 63843840. Its totient is φ = 63510556.

The previous prime is 63677191. The next prime is 63677231. The reversal of 63677197 is 79177636.

It is a happy number.

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 a de Polignac number, because none of the positive numbers 2^k-63677197 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 (63677191) 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, 82747 + ... + 83512.

It is an arithmetic number, because the mean of its divisors is an integer number (15960960).

Almost surely, 2^63677197 is an apocalyptic number.

It is an amenable number.

63677197 is a deficient number, since it is larger than the sum of its proper divisors (166643).

63677197 is a wasteful number, since it uses less digits than its factorization.

63677197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166642.

The product of its digits is 333396, while the sum is 46.

The square root of 63677197 is about 7979.7993082533. The cubic root of 63677197 is about 399.3263599094.

The spelling of 63677197 in words is "sixty-three million, six hundred seventy-seven thousand, one hundred ninety-seven".