87497861 has 8 divisors (see below), whose sum is σ = 101067264. Its totient is φ = 74864320.

The previous prime is 87497857. The next prime is 87497863. The reversal of 87497861 is 16879478.

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

It is a cyclic number.

It is not a de Polignac number, because 87497861 - 2² = 87497857 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87497863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 233765 + ... + 234138.

It is an arithmetic number, because the mean of its divisors is an integer number (12633408).

Almost surely, 2^87497861 is an apocalyptic number.

It is an amenable number.

87497861 is a deficient number, since it is larger than the sum of its proper divisors (13569403).

87497861 is a wasteful number, since it uses less digits than its factorization.

87497861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467931.

The product of its digits is 677376, while the sum is 50.

The square root of 87497861 is about 9354.0291318768. The cubic root of 87497861 is about 443.9483832672.

The spelling of 87497861 in words is "eighty-seven million, four hundred ninety-seven thousand, eight hundred sixty-one".