87869377 has 4 divisors (see below), whose sum is σ = 87915460. Its totient is φ = 87823296.

The previous prime is 87869371. The next prime is 87869381. The reversal of 87869377 is 77396878.

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

It can be written as a sum of positive squares in 2 ways, for example, as 52359696 + 35509681 = 7236^2 + 5959^2 .

It is a cyclic number.

It is not a de Polignac number, because 87869377 - 2²³ = 79480769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87869371) 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, 20052 + ... + 24037.

It is an arithmetic number, because the mean of its divisors is an integer number (21978865).

Almost surely, 2^87869377 is an apocalyptic number.

It is an amenable number.

87869377 is a deficient number, since it is larger than the sum of its proper divisors (46083).

87869377 is a wasteful number, since it uses less digits than its factorization.

87869377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46082.

The product of its digits is 3556224, while the sum is 55.

The square root of 87869377 is about 9373.8667048342. The cubic root of 87869377 is about 444.5758311394.

The spelling of 87869377 in words is "eighty-seven million, eight hundred sixty-nine thousand, three hundred seventy-seven".