63271091 has 16 divisors (see below), whose sum is σ = 72287040. Its totient is φ = 54933120.

The previous prime is 63271067. The next prime is 63271151. The reversal of 63271091 is 19017236.

It is a cyclic number.

It is not a de Polignac number, because 63271091 - 2⁶ = 63271027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63271991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16505 + ... + 19973.

It is an arithmetic number, because the mean of its divisors is an integer number (4517940).

Almost surely, 2^63271091 is an apocalyptic number.

63271091 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

63271091 is a deficient number, since it is larger than the sum of its proper divisors (9015949).

63271091 is a wasteful number, since it uses less digits than its factorization.

63271091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3566.

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 63271091 is about 7954.3127295826. The cubic root of 63271091 is about 398.4756377622.

The spelling of 63271091 in words is "sixty-three million, two hundred seventy-one thousand, ninety-one".