77077077 has 16 divisors (see below), whose sum is σ = 128128512. Its totient is φ = 40039920.

The previous prime is 77077057. The next prime is 77077087.

77077077 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 77077077 - 2⁸ = 77076821 is a prime.

77077077 is a modest number, since divided by 77077 gives 77 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77077057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 166603 + ... + 167064.

It is an arithmetic number, because the mean of its divisors is an integer number (8008032).

Almost surely, 2^77077077 is an apocalyptic number.

77077077 is a gapful number since it is divisible by the number (77) formed by its first and last digit.

It is an amenable number.

77077077 is a deficient number, since it is larger than the sum of its proper divisors (51051435).

77077077 is a wasteful number, since it uses less digits than its factorization.

77077077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333688.

The product of its (nonzero) digits is 117649, while the sum is 42.

The square root of 77077077 is about 8779.3551585524. The cubic root of 77077077 is about 425.5739916792.

The spelling of 77077077 in words is "seventy-seven million, seventy-seven thousand, seventy-seven".