87097869 has 8 divisors (see below), whose sum is σ = 129033920. Its totient is φ = 58065228.

The previous prime is 87097861. The next prime is 87097873. The reversal of 87097869 is 96879078.

It is not a de Polignac number, because 87097869 - 2³ = 87097861 is a prime.

It is a super-2 number, since 2×87097869² = 15172077568682322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87097861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1612897 + ... + 1612950.

It is an arithmetic number, because the mean of its divisors is an integer number (16129240).

Almost surely, 2^87097869 is an apocalyptic number.

It is an amenable number.

87097869 is a deficient number, since it is larger than the sum of its proper divisors (41936051).

87097869 is a wasteful number, since it uses less digits than its factorization.

87097869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3225856 (or 3225850 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 54.

The square root of 87097869 is about 9332.6239075621. The cubic root of 87097869 is about 443.2708540038.

The spelling of 87097869 in words is "eighty-seven million, ninety-seven thousand, eight hundred sixty-nine".