77006770 has 32 divisors (see below), whose sum is σ = 147246336. Its totient is φ = 28896000.

The previous prime is 77006767. The next prime is 77006777. The reversal of 77006770 is 7760077.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (77006777) 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, 72745 + ... + 73795.

It is an arithmetic number, because the mean of its divisors is an integer number (4601448).

Almost surely, 2^77006770 is an apocalyptic number.

77006770 is a deficient number, since it is larger than the sum of its proper divisors (70239566).

77006770 is a wasteful number, since it uses less digits than its factorization.

77006770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1506.

The product of its (nonzero) digits is 14406, while the sum is 34.

The square root of 77006770 is about 8775.3501354647. The cubic root of 77006770 is about 425.4445544371. Note that the first 3 decimals are identical.

The spelling of 77006770 in words is "seventy-seven million, six thousand, seven hundred seventy".