87297645 has 16 divisors (see below), whose sum is σ = 139897152. Its totient is φ = 46485120.

The previous prime is 87297619. The next prime is 87297677. The reversal of 87297645 is 54679278.

It is not a de Polignac number, because 87297645 - 2⁷ = 87297517 is a prime.

It is a super-3 number, since 3×87297645³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 87297594 and 87297603.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5985 + ... + 14505.

It is an arithmetic number, because the mean of its divisors is an integer number (8743572).

Almost surely, 2^87297645 is an apocalyptic number.

It is an amenable number.

87297645 is a deficient number, since it is larger than the sum of its proper divisors (52599507).

87297645 is a wasteful number, since it uses less digits than its factorization.

87297645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9212.

The product of its digits is 846720, while the sum is 48.

The square root of 87297645 is about 9343.3208764336. The cubic root of 87297645 is about 443.6095046861.

The spelling of 87297645 in words is "eighty-seven million, two hundred ninety-seven thousand, six hundred forty-five".