64872450 has 36 divisors (see below), whose sum is σ = 174291858. Its totient is φ = 17299200.

The previous prime is 64872439. The next prime is 64872473. The reversal of 64872450 is 5427846.

64872450 is a `hidden beast` number, since 648 + 7 + 2 + 4 + 5 + 0 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 43996689 + 20875761 = 6633^2 + 4569^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 71631 + ... + 72530.

Almost surely, 2^64872450 is an apocalyptic number.

64872450 is an abundant number, since it is smaller than the sum of its proper divisors (109419408).

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

64872450 is a wasteful number, since it uses less digits than its factorization.

64872450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144179 (or 144171 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 64872450 is about 8054.3435486699. The cubic root of 64872450 is about 401.8094069415.

The spelling of 64872450 in words is "sixty-four million, eight hundred seventy-two thousand, four hundred fifty".