87780806 has 8 divisors (see below), whose sum is σ = 131714184. Its totient is φ = 43876080.

The previous prime is 87780793. The next prime is 87780827. The reversal of 87780806 is 60808778.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3941 + ... + 13823.

It is an arithmetic number, because the mean of its divisors is an integer number (16464273).

Almost surely, 2^87780806 is an apocalyptic number.

87780806 is a deficient number, since it is larger than the sum of its proper divisors (43933378).

87780806 is a wasteful number, since it uses less digits than its factorization.

87780806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14326.

The product of its (nonzero) digits is 150528, while the sum is 44.

The square root of 87780806 is about 9369.1411559438. The cubic root of 87780806 is about 444.4264056892.

The spelling of 87780806 in words is "eighty-seven million, seven hundred eighty thousand, eight hundred six".