87673577 has 2 divisors, whose sum is σ = 87673578. Its totient is φ = 87673576.

The previous prime is 87673559. The next prime is 87673591. The reversal of 87673577 is 77537678.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79995136 + 7678441 = 8944^2 + 2771^2 .

It is a cyclic number.

It is not a de Polignac number, because 87673577 - 2⁶ = 87673513 is a prime.

It is a super-2 number, since 2×87673577² = 15373312207949858, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (87673507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43836788 + 43836789.

It is an arithmetic number, because the mean of its divisors is an integer number (43836789).

Almost surely, 2^87673577 is an apocalyptic number.

It is an amenable number.

87673577 is a deficient number, since it is larger than the sum of its proper divisors (1).

87673577 is an equidigital number, since it uses as much as digits as its factorization.

87673577 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728720, while the sum is 50.

The square root of 87673577 is about 9363.4169510922. The cubic root of 87673577 is about 444.2453683267.

The spelling of 87673577 in words is "eighty-seven million, six hundred seventy-three thousand, five hundred seventy-seven".