77000870 has 32 divisors (see below), whose sum is σ = 143367840. Its totient is φ = 29756160.

The previous prime is 77000827. The next prime is 77000873. The reversal of 77000870 is 7800077.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77000873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43829 + ... + 45551.

It is an arithmetic number, because the mean of its divisors is an integer number (4480245).

Almost surely, 2^77000870 is an apocalyptic number.

77000870 is a deficient number, since it is larger than the sum of its proper divisors (66366970).

77000870 is a wasteful number, since it uses less digits than its factorization.

77000870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1880.

The product of its (nonzero) digits is 2744, while the sum is 29.

The square root of 77000870 is about 8775.0139601029. The cubic root of 77000870 is about 425.4336887822.

The spelling of 77000870 in words is "seventy-seven million, eight hundred seventy", and thus it is an aban number.