87377089 has 4 divisors (see below), whose sum is σ = 89236224. Its totient is φ = 85517956.

The previous prime is 87377077. The next prime is 87377107. The reversal of 87377089 is 98077378.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 87377089 - 2⁵ = 87377057 is a prime.

It is a super-2 number, since 2×87377089² = 15269511364227842, 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 not an unprimeable number, because it can be changed into a prime (87377489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 929497 + ... + 929590.

It is an arithmetic number, because the mean of its divisors is an integer number (22309056).

Almost surely, 2^87377089 is an apocalyptic number.

It is an amenable number.

87377089 is a deficient number, since it is larger than the sum of its proper divisors (1859135).

87377089 is a wasteful number, since it uses less digits than its factorization.

87377089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1859134.

The product of its (nonzero) digits is 592704, while the sum is 49.

The square root of 87377089 is about 9347.5712888429. The cubic root of 87377089 is about 443.7440307601.

The spelling of 87377089 in words is "eighty-seven million, three hundred seventy-seven thousand, eighty-nine".