87053405 has 8 divisors (see below), whose sum is σ = 106176984. Its totient is φ = 68500800.

The previous prime is 87053377. The next prime is 87053411. The reversal of 87053405 is 50435078.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1194649 + 85858756 = 1093^2 + 9266^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 87053405 - 2⁸ = 87053149 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142406 + ... + 143015.

It is an arithmetic number, because the mean of its divisors is an integer number (13272123).

Almost surely, 2^87053405 is an apocalyptic number.

It is an amenable number.

87053405 is a deficient number, since it is larger than the sum of its proper divisors (19123579).

87053405 is a wasteful number, since it uses less digits than its factorization.

87053405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285487.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 87053405 is about 9330.2414223856. The cubic root of 87053405 is about 443.1954103281.

The spelling of 87053405 in words is "eighty-seven million, fifty-three thousand, four hundred five".