63450999 has 16 divisors (see below), whose sum is σ = 94141440. Its totient is φ = 42237720.

The previous prime is 63450979. The next prime is 63451001. The reversal of 63450999 is 99905436.

It is a happy number.

63450999 is a `hidden beast` number, since 634 + 5 + 0 + 9 + 9 + 9 = 666.

It is not a de Polignac number, because 63450999 - 2¹⁵ = 63418231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63450949) 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, 23194 + ... + 25784.

It is an arithmetic number, because the mean of its divisors is an integer number (5883840).

Almost surely, 2^63450999 is an apocalyptic number.

63450999 is a deficient number, since it is larger than the sum of its proper divisors (30690441).

63450999 is a wasteful number, since it uses less digits than its factorization.

63450999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3507 (or 3501 counting only the distinct ones).

The product of its (nonzero) digits is 262440, while the sum is 45.

The square root of 63450999 is about 7965.6135356920. The cubic root of 63450999 is about 398.8529618193.

The spelling of 63450999 in words is "sixty-three million, four hundred fifty thousand, nine hundred ninety-nine".