89427719 has 4 divisors (see below), whose sum is σ = 89463000. Its totient is φ = 89392440.

The previous prime is 89427707. The next prime is 89427721. The reversal of 89427719 is 91772498.

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-89427719 is a prime.

It is a super-2 number, since 2×89427719² = 15994633851085922, 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 (89427119) 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 3 ways as a sum of consecutive naturals, for example, 13517 + ... + 19014.

It is an arithmetic number, because the mean of its divisors is an integer number (22365750).

Almost surely, 2^89427719 is an apocalyptic number.

89427719 is a deficient number, since it is larger than the sum of its proper divisors (35281).

89427719 is a wasteful number, since it uses less digits than its factorization.

89427719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35280.

The product of its digits is 254016, while the sum is 47.

The square root of 89427719 is about 9456.6230230458. The cubic root of 89427719 is about 447.1885939356.

It can be divided in two parts, 8942 and 7719, that added together give a palindrome (16661).

The spelling of 89427719 in words is "eighty-nine million, four hundred twenty-seven thousand, seven hundred nineteen".