63969486 has 32 divisors (see below), whose sum is σ = 152575488. Its totient is φ = 17482080.

The previous prime is 63969481. The next prime is 63969533. The reversal of 63969486 is 68496936.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63969481) 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, 32145 + ... + 34076.

It is an arithmetic number, because the mean of its divisors is an integer number (4767984).

Almost surely, 2^63969486 is an apocalyptic number.

63969486 is an abundant number, since it is smaller than the sum of its proper divisors (88606002).

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

63969486 is a wasteful number, since it uses less digits than its factorization.

63969486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66256.

The product of its digits is 1679616, while the sum is 51.

The square root of 63969486 is about 7998.0926476254. The cubic root of 63969486 is about 399.9364190609.

It can be divided in two parts, 639 and 69486, that added together give a triangular number (70125 = T₃₇₄).

The spelling of 63969486 in words is "sixty-three million, nine hundred sixty-nine thousand, four hundred eighty-six".