63651448 has 16 divisors (see below), whose sum is σ = 136396080. Its totient is φ = 27279168.

The previous prime is 63651439. The next prime is 63651457. The reversal of 63651448 is 84415636.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (63651439) and next prime (63651457).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 568261 + ... + 568372.

It is an arithmetic number, because the mean of its divisors is an integer number (8524755).

Almost surely, 2^63651448 is an apocalyptic number.

It is an amenable number.

63651448 is an abundant number, since it is smaller than the sum of its proper divisors (72744632).

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

63651448 is a wasteful number, since it uses less digits than its factorization.

63651448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1136646 (or 1136642 counting only the distinct ones).

The product of its digits is 69120, while the sum is 37.

The square root of 63651448 is about 7978.1857586797. The cubic root of 63651448 is about 399.2725277624.

It can be divided in two parts, 63 and 651448, that added together give a triangular number (651511 = T₁₁₄₁).

The spelling of 63651448 in words is "sixty-three million, six hundred fifty-one thousand, four hundred forty-eight".