63677331 has 6 divisors (see below), whose sum is σ = 91978380. Its totient is φ = 42451548.

The previous prime is 63677311. The next prime is 63677347. The reversal of 63677331 is 13377636.

It is not a de Polignac number, because 63677331 - 2¹³ = 63669139 is a prime.

It is a super-2 number, since 2×63677331² = 8109604966567122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (63677311) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3537621 + ... + 3537638.

It is an arithmetic number, because the mean of its divisors is an integer number (15329730).

Almost surely, 2^63677331 is an apocalyptic number.

63677331 is a deficient number, since it is larger than the sum of its proper divisors (28301049).

63677331 is a wasteful number, since it uses less digits than its factorization.

63677331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7075265 (or 7075262 counting only the distinct ones).

The product of its digits is 47628, while the sum is 36.

The square root of 63677331 is about 7979.8077044500. The cubic root of 63677331 is about 399.3266400186.

It can be divided in two parts, 636773 and 31, that added together give a square (636804 = 798²).

The spelling of 63677331 in words is "sixty-three million, six hundred seventy-seven thousand, three hundred thirty-one".