88257861 has 6 divisors (see below), whose sum is σ = 127483590. Its totient is φ = 58838568.

The previous prime is 88257857. The next prime is 88257881. The reversal of 88257861 is 16875288.

It can be written as a sum of positive squares in only one way, i.e., 87890625 + 367236 = 9375^2 + 606^2 .

It is not a de Polignac number, because 88257861 - 2² = 88257857 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88257811) 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, 4903206 + ... + 4903223.

It is an arithmetic number, because the mean of its divisors is an integer number (21247265).

Almost surely, 2^88257861 is an apocalyptic number.

It is an amenable number.

88257861 is a deficient number, since it is larger than the sum of its proper divisors (39225729).

88257861 is a wasteful number, since it uses less digits than its factorization.

88257861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9806435 (or 9806432 counting only the distinct ones).

The product of its digits is 215040, while the sum is 45.

The square root of 88257861 is about 9394.5655035238. The cubic root of 88257861 is about 445.2300472790.

The spelling of 88257861 in words is "eighty-eight million, two hundred fifty-seven thousand, eight hundred sixty-one".