63043491 has 32 divisors (see below), whose sum is σ = 100159488. Its totient is φ = 34513920.

The previous prime is 63043489. The next prime is 63043499. The reversal of 63043491 is 19434036.

It is not a de Polignac number, because 63043491 - 2¹ = 63043489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (63043499) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73135 + ... + 73991.

It is an arithmetic number, because the mean of its divisors is an integer number (3129984).

Almost surely, 2^63043491 is an apocalyptic number.

63043491 is a deficient number, since it is larger than the sum of its proper divisors (37115997).

63043491 is a wasteful number, since it uses less digits than its factorization.

63043491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011.

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 63043491 is about 7939.9931360172. The cubic root of 63043491 is about 397.9972622557.

The spelling of 63043491 in words is "sixty-three million, forty-three thousand, four hundred ninety-one".