63677231 has 2 divisors, whose sum is σ = 63677232. Its totient is φ = 63677230.

The previous prime is 63677191. The next prime is 63677249. The reversal of 63677231 is 13277636.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63677231 is a prime.

It is a super-2 number, since 2×63677231² = 8109579495654722, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 63677191 and 63677200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63673231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31838615 + 31838616.

It is an arithmetic number, because the mean of its divisors is an integer number (31838616).

Almost surely, 2^63677231 is an apocalyptic number.

63677231 is a deficient number, since it is larger than the sum of its proper divisors (1).

63677231 is an equidigital number, since it uses as much as digits as its factorization.

63677231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31752, while the sum is 35.

The square root of 63677231 is about 7979.8014386324. The cubic root of 63677231 is about 399.3264309819.

It can be divided in two parts, 636 and 77231, that multiplied together give a triangular number (49118916 = T₉₉₁₁).

The spelling of 63677231 in words is "sixty-three million, six hundred seventy-seven thousand, two hundred thirty-one".