87285349 has 4 divisors (see below), whose sum is σ = 87320236. Its totient is φ = 87250464.

The previous prime is 87285343. The next prime is 87285377. The reversal of 87285349 is 94358278.

87285349 is nontrivially palindromic in base 2.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 67125249 + 20160100 = 8193^2 + 4490^2 .

It is a cyclic number.

It is not a de Polignac number, because 87285349 - 2²¹ = 85188197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87285299 and 87285308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87285343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13374 + ... + 18799.

It is an arithmetic number, because the mean of its divisors is an integer number (21830059).

Almost surely, 2^87285349 is an apocalyptic number.

It is an amenable number.

87285349 is a deficient number, since it is larger than the sum of its proper divisors (34887).

87285349 is a wasteful number, since it uses less digits than its factorization.

87285349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34886.

The product of its digits is 483840, while the sum is 46.

The square root of 87285349 is about 9342.6628431085. The cubic root of 87285349 is about 443.5886760273.

The spelling of 87285349 in words is "eighty-seven million, two hundred eighty-five thousand, three hundred forty-nine".