63491346 has 24 divisors (see below), whose sum is σ = 138366540. Its totient is φ = 21040416.

The previous prime is 63491341. The next prime is 63491347. The reversal of 63491346 is 64319436.

63491346 is a `hidden beast` number, since 634 + 9 + 13 + 4 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 47403225 + 16088121 = 6885^2 + 4011^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 63491346.

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

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7081 + ... + 13308.

Almost surely, 2^63491346 is an apocalyptic number.

63491346 is an abundant number, since it is smaller than the sum of its proper divisors (74875194).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63491346 is a wasteful number, since it uses less digits than its factorization.

63491346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20570 (or 20567 counting only the distinct ones).

The product of its digits is 46656, while the sum is 36.

The square root of 63491346 is about 7968.1457064991. The cubic root of 63491346 is about 398.9374843167.

The spelling of 63491346 in words is "sixty-three million, four hundred ninety-one thousand, three hundred forty-six".