87683777 has 4 divisors (see below), whose sum is σ = 87936816. Its totient is φ = 87430740.

The previous prime is 87683749. The next prime is 87683801. The reversal of 87683777 is 77738678.

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, and also an emirpimes, since its reverse is a distinct semiprime: 77738678 = 2 ⋅38869339.

It is a cyclic number.

It is not a de Polignac number, because 87683777 - 2¹² = 87679681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87683177) 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, 125999 + ... + 126692.

It is an arithmetic number, because the mean of its divisors is an integer number (21984204).

Almost surely, 2^87683777 is an apocalyptic number.

It is an amenable number.

87683777 is a deficient number, since it is larger than the sum of its proper divisors (253039).

87683777 is a wasteful number, since it uses less digits than its factorization.

87683777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253038.

The product of its digits is 2765952, while the sum is 53.

The square root of 87683777 is about 9363.9616082084. The cubic root of 87683777 is about 444.2625955887.

The spelling of 87683777 in words is "eighty-seven million, six hundred eighty-three thousand, seven hundred seventy-seven".