77270706 has 16 divisors (see below), whose sum is σ = 171712800. Its totient is φ = 25756884.

The previous prime is 77270671. The next prime is 77270747. The reversal of 77270706 is 60707277.

It is a happy number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 715416 + ... + 715523.

It is an arithmetic number, because the mean of its divisors is an integer number (10732050).

Almost surely, 2^77270706 is an apocalyptic number.

77270706 is an abundant number, since it is smaller than the sum of its proper divisors (94442094).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77270706 is a wasteful number, since it uses less digits than its factorization.

77270706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1430950 (or 1430944 counting only the distinct ones).

The product of its (nonzero) digits is 28812, while the sum is 36.

The square root of 77270706 is about 8790.3757598865. The cubic root of 77270706 is about 425.9300619168.

The spelling of 77270706 in words is "seventy-seven million, two hundred seventy thousand, seven hundred six".