87857262 has 12 divisors (see below), whose sum is σ = 190357440. Its totient is φ = 29285748.

The previous prime is 87857261. The next prime is 87857303. The reversal of 87857262 is 26275878.

87857262 is a `hidden beast` number, since 8 + 78 + 572 + 6 + 2 = 666.

It is a super-2 number, since 2×87857262² = 15437796972273288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87857261) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2440462 + ... + 2440497.

It is an arithmetic number, because the mean of its divisors is an integer number (15863120).

Almost surely, 2^87857262 is an apocalyptic number.

87857262 is an abundant number, since it is smaller than the sum of its proper divisors (102500178).

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

87857262 is a wasteful number, since it uses less digits than its factorization.

87857262 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4880967 (or 4880964 counting only the distinct ones).

The product of its digits is 376320, while the sum is 45.

The square root of 87857262 is about 9373.2204711081. The cubic root of 87857262 is about 444.5553982198. Note that the first 3 decimals are identical.

The spelling of 87857262 in words is "eighty-seven million, eight hundred fifty-seven thousand, two hundred sixty-two".