28632546 has 48 divisors (see below), whose sum is σ = 63980280. Its totient is φ = 9250560.

The previous prime is 28632533. The next prime is 28632559. The reversal of 28632546 is 64523682.

28632546 is a `hidden beast` number, since 2 + 86 + 32 + 546 = 666.

It is an interprime number because it is at equal distance from previous prime (28632533) and next prime (28632559).

It can be written as a sum of positive squares in 4 ways, for example, as 19900521 + 8732025 = 4461^2 + 2955^2 .

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 28632546.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 97576 + ... + 97868.

Almost surely, 2^28632546 is an apocalyptic number.

28632546 is an abundant number, since it is smaller than the sum of its proper divisors (35347734).

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

28632546 is a wasteful number, since it uses less digits than its factorization.

28632546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451 (or 448 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 28632546 is about 5350.9387961366. The cubic root of 28632546 is about 305.9285364322.

The spelling of 28632546 in words is "twenty-eight million, six hundred thirty-two thousand, five hundred forty-six".