87704951 has 4 divisors (see below), whose sum is σ = 88940304. Its totient is φ = 86469600.

The previous prime is 87704933. The next prime is 87704959. The reversal of 87704951 is 15940778.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87704951 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87704899 and 87704908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87704959) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 617570 + ... + 617711.

It is an arithmetic number, because the mean of its divisors is an integer number (22235076).

Almost surely, 2^87704951 is an apocalyptic number.

87704951 is a deficient number, since it is larger than the sum of its proper divisors (1235353).

87704951 is a wasteful number, since it uses less digits than its factorization.

87704951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1235352.

The product of its (nonzero) digits is 70560, while the sum is 41.

The square root of 87704951 is about 9365.0921511750. The cubic root of 87704951 is about 444.2983530930.

The spelling of 87704951 in words is "eighty-seven million, seven hundred four thousand, nine hundred fifty-one".