852415 has 4 divisors (see below), whose sum is σ = 1022904. Its totient is φ = 681928.

The previous prime is 852409. The next prime is 852427. The reversal of 852415 is 514258.

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

It is a cyclic number.

It is not a de Polignac number, because 852415 - 2⁷ = 852287 is a prime.

It is a super-2 number, since 2×852415² = 1453222664450, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 852415.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85237 + ... + 85246.

It is an arithmetic number, because the mean of its divisors is an integer number (255726).

2⁸⁵²⁴¹⁵ is an apocalyptic number.

852415 is a deficient number, since it is larger than the sum of its proper divisors (170489).

852415 is a wasteful number, since it uses less digits than its factorization.

852415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170488.

The product of its digits is 1600, while the sum is 25.

The square root of 852415 is about 923.2632344028. The cubic root of 852415 is about 94.8164507643.

It can be divided in two parts, 85 and 2415, that added together give a square (2500 = 50²).

The spelling of 852415 in words is "eight hundred fifty-two thousand, four hundred fifteen".