63491349 has 16 divisors (see below), whose sum is σ = 86875712. Its totient is φ = 41223168.

The previous prime is 63491347. The next prime is 63491381. The reversal of 63491349 is 94319436.

63491349 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 63491349 - 2¹ = 63491347 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63491341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74007 + ... + 74859.

It is an arithmetic number, because the mean of its divisors is an integer number (5429732).

Almost surely, 2^63491349 is an apocalyptic number.

It is an amenable number.

63491349 is a deficient number, since it is larger than the sum of its proper divisors (23384363).

63491349 is a wasteful number, since it uses less digits than its factorization.

63491349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1476.

The product of its digits is 69984, while the sum is 39.

The square root of 63491349 is about 7968.1458947487. The cubic root of 63491349 is about 398.9374906001.

The spelling of 63491349 in words is "sixty-three million, four hundred ninety-one thousand, three hundred forty-nine".