87616851 has 48 divisors (see below), whose sum is σ = 141916320. Its totient is φ = 47900160.

The previous prime is 87616831. The next prime is 87616853. The reversal of 87616851 is 15861678.

It is not a de Polignac number, because 87616851 - 2⁶ = 87616787 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87616853) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 483981 + ... + 484161.

It is an arithmetic number, because the mean of its divisors is an integer number (2956590).

Almost surely, 2^87616851 is an apocalyptic number.

87616851 is a deficient number, since it is larger than the sum of its proper divisors (54299469).

87616851 is a wasteful number, since it uses less digits than its factorization.

87616851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324 (or 317 counting only the distinct ones).

The product of its digits is 80640, while the sum is 42.

The square root of 87616851 is about 9360.3873317294. The cubic root of 87616851 is about 444.1495367183.

The spelling of 87616851 in words is "eighty-seven million, six hundred sixteen thousand, eight hundred fifty-one".