87486919 has 8 divisors (see below), whose sum is σ = 95189360. Its totient is φ = 79923456.

The previous prime is 87486899. The next prime is 87486937. The reversal of 87486919 is 91968478.

It is a happy number.

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 87486919 - 2¹⁵ = 87454151 is a prime.

It is a super-2 number, since 2×87486919² = 15307921992225122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87486979) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33429 + ... + 35950.

It is an arithmetic number, because the mean of its divisors is an integer number (11898670).

Almost surely, 2^87486919 is an apocalyptic number.

87486919 is a deficient number, since it is larger than the sum of its proper divisors (7702441).

87486919 is a wasteful number, since it uses less digits than its factorization.

87486919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69489.

The product of its digits is 870912, while the sum is 52.

The square root of 87486919 is about 9353.4442319394. Note that the first 3 decimals coincide. The cubic root of 87486919 is about 443.9298765835.

The spelling of 87486919 in words is "eighty-seven million, four hundred eighty-six thousand, nine hundred nineteen".