87144677 has 8 divisors (see below), whose sum is σ = 91095360. Its totient is φ = 83207520.

The previous prime is 87144647. The next prime is 87144679. The reversal of 87144677 is 77644178.

It is a happy number.

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 87144677 - 2¹⁸ = 86882533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87144679) 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, 11177 + ... + 17297.

It is an arithmetic number, because the mean of its divisors is an integer number (11386920).

Almost surely, 2^87144677 is an apocalyptic number.

It is an amenable number.

87144677 is a deficient number, since it is larger than the sum of its proper divisors (3950683).

87144677 is a wasteful number, since it uses less digits than its factorization.

87144677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6763.

The product of its digits is 263424, while the sum is 44.

The square root of 87144677 is about 9335.1313327666. The cubic root of 87144677 is about 443.3502470918.

The spelling of 87144677 in words is "eighty-seven million, one hundred forty-four thousand, six hundred seventy-seven".