63873031 has 2 divisors, whose sum is σ = 63873032. Its totient is φ = 63873030.

The previous prime is 63873023. The next prime is 63873053. The reversal of 63873031 is 13037836.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 63873031 - 2³ = 63873023 is a prime.

It is a super-2 number, since 2×63873031² = 8159528178253922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 63872984 and 63873002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63873011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31936515 + 31936516.

It is an arithmetic number, because the mean of its divisors is an integer number (31936516).

Almost surely, 2^63873031 is an apocalyptic number.

63873031 is a deficient number, since it is larger than the sum of its proper divisors (1).

63873031 is an equidigital number, since it uses as much as digits as its factorization.

63873031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 63873031 is about 7992.0604977690. The cubic root of 63873031 is about 399.7353061315.

The spelling of 63873031 in words is "sixty-three million, eight hundred seventy-three thousand, thirty-one".