28472535 has 96 divisors (see below), whose sum is σ = 64471680. Its totient is φ = 11280384.

The previous prime is 28472533. The next prime is 28472537. The reversal of 28472535 is 53527482.

28472535 = T₁₂₅₈ + T₁₂₅₉ + ... + T₁₂₉₂.

It is an interprime number because it is at equal distance from previous prime (28472533) and next prime (28472537).

It is not a de Polignac number, because 28472535 - 2¹ = 28472533 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28472535.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28472533) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 69411 + ... + 69819.

It is an arithmetic number, because the mean of its divisors is an integer number (671580).

Almost surely, 2^28472535 is an apocalyptic number.

28472535 is an abundant number, since it is smaller than the sum of its proper divisors (35999145).

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

28472535 is a wasteful number, since it uses less digits than its factorization.

28472535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457 (or 454 counting only the distinct ones).

The product of its digits is 67200, while the sum is 36.

The square root of 28472535 is about 5335.9661730562. The cubic root of 28472535 is about 305.3575847214.

The spelling of 28472535 in words is "twenty-eight million, four hundred seventy-two thousand, five hundred thirty-five".