87803825 has 12 divisors (see below), whose sum is σ = 109843788. Its totient is φ = 69619200.

The previous prime is 87803819. The next prime is 87803831. The reversal of 87803825 is 52830878.

It is an interprime number because it is at equal distance from previous prime (87803819) and next prime (87803831).

It can be written as a sum of positive squares in 6 ways, for example, as 25725184 + 62078641 = 5072^2 + 7879^2 .

It is not a de Polignac number, because 87803825 - 2⁶ = 87803761 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12716 + ... + 18365.

It is an arithmetic number, because the mean of its divisors is an integer number (9153649).

Almost surely, 2^87803825 is an apocalyptic number.

It is an amenable number.

87803825 is a deficient number, since it is larger than the sum of its proper divisors (22039963).

87803825 is a wasteful number, since it uses less digits than its factorization.

87803825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31204 (or 31199 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 41.

The square root of 87803825 is about 9370.3695231298. The cubic root of 87803825 is about 444.4652500098.

The spelling of 87803825 in words is "eighty-seven million, eight hundred three thousand, eight hundred twenty-five".