28463571 has 6 divisors (see below), whose sum is σ = 41114060. Its totient is φ = 18975708.

The previous prime is 28463569. The next prime is 28463573. The reversal of 28463571 is 17536482.

28463571 is a `hidden beast` number, since 2 + 84 + 6 + 3 + 571 = 666.

It is an interprime number because it is at equal distance from previous prime (28463569) and next prime (28463573).

It is not a de Polignac number, because 28463571 - 2¹ = 28463569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28463573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1581301 + ... + 1581318.

Almost surely, 2^28463571 is an apocalyptic number.

28463571 is a deficient number, since it is larger than the sum of its proper divisors (12650489).

28463571 is a wasteful number, since it uses less digits than its factorization.

28463571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3162625 (or 3162622 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 28463571 is about 5335.1261465874. The cubic root of 28463571 is about 305.3255361444.

The spelling of 28463571 in words is "twenty-eight million, four hundred sixty-three thousand, five hundred seventy-one".