87963405 has 16 divisors (see below), whose sum is σ = 140987904. Its totient is φ = 46831680.

The previous prime is 87963377. The next prime is 87963413. The reversal of 87963405 is 50436978.

It is a happy number.

It is not a de Polignac number, because 87963405 - 2¹³ = 87955213 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 4275 + ... + 13935.

It is an arithmetic number, because the mean of its divisors is an integer number (8811744).

Almost surely, 2^87963405 is an apocalyptic number.

It is an amenable number.

87963405 is a deficient number, since it is larger than the sum of its proper divisors (53024499).

87963405 is a wasteful number, since it uses less digits than its factorization.

87963405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10276.

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 87963405 is about 9378.8807967689. The cubic root of 87963405 is about 444.7343530869.

The spelling of 87963405 in words is "eighty-seven million, nine hundred sixty-three thousand, four hundred five".