87245469 has 12 divisors (see below), whose sum is σ = 126489792. Its totient is φ = 57947400.

The previous prime is 87245461. The next prime is 87245491. The reversal of 87245469 is 96454278.

It is a happy number.

87245469 is a `hidden beast` number, since 87 + 24 + 546 + 9 = 666.

It is not a de Polignac number, because 87245469 - 2³ = 87245461 is a prime.

It is a super-2 number, since 2×87245469² = 15223543722059922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87245461) 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 11 ways as a sum of consecutive naturals, for example, 15447 + ... + 20324.

It is an arithmetic number, because the mean of its divisors is an integer number (10540816).

Almost surely, 2^87245469 is an apocalyptic number.

It is an amenable number.

87245469 is a deficient number, since it is larger than the sum of its proper divisors (39244323).

87245469 is a wasteful number, since it uses less digits than its factorization.

87245469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36048 (or 36045 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 87245469 is about 9340.5283041164. The cubic root of 87245469 is about 443.5211083256.

The spelling of 87245469 in words is "eighty-seven million, two hundred forty-five thousand, four hundred sixty-nine".