89616487 has 4 divisors (see below), whose sum is σ = 93512880. Its totient is φ = 85720096.

The previous prime is 89616427. The next prime is 89616493. The reversal of 89616487 is 78461698.

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

It is a cyclic number.

It is not a de Polignac number, because 89616487 - 2¹⁵ = 89583719 is a prime.

It is a super-2 number, since 2×89616487² = 16062229484442338, which contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 89616487.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89616427) 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, 1948162 + ... + 1948207.

It is an arithmetic number, because the mean of its divisors is an integer number (23378220).

Almost surely, 2^89616487 is an apocalyptic number.

89616487 is a deficient number, since it is larger than the sum of its proper divisors (3896393).

89616487 is a wasteful number, since it uses less digits than its factorization.

89616487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3896392.

The product of its digits is 580608, while the sum is 49.

The square root of 89616487 is about 9466.5984915386. The cubic root of 89616487 is about 447.5030213168.

The spelling of 89616487 in words is "eighty-nine million, six hundred sixteen thousand, four hundred eighty-seven".