87609377 has 8 divisors (see below), whose sum is σ = 93081000. Its totient is φ = 82301184.

The previous prime is 87609373. The next prime is 87609383. The reversal of 87609377 is 77390678.

It can be written as a sum of positive squares in 4 ways, for example, as 47210641 + 40398736 = 6871^2 + 6356^2 .

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 87609377 - 2² = 87609373 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87609373) 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, 39752 + ... + 41897.

It is an arithmetic number, because the mean of its divisors is an integer number (11635125).

Almost surely, 2^87609377 is an apocalyptic number.

It is an amenable number.

87609377 is a deficient number, since it is larger than the sum of its proper divisors (5471623).

87609377 is a wasteful number, since it uses less digits than its factorization.

87609377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81715.

The product of its (nonzero) digits is 444528, while the sum is 47.

The square root of 87609377 is about 9359.9880875993. The cubic root of 87609377 is about 444.1369072298.

The spelling of 87609377 in words is "eighty-seven million, six hundred nine thousand, three hundred seventy-seven".