77769077 has 8 divisors (see below), whose sum is σ = 78559680. Its totient is φ = 76982400.

The previous prime is 77769059. The next prime is 77769089. The reversal of 77769077 is 77096777.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 77769077 - 2¹⁶ = 77703541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77769037) 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 7 ways as a sum of consecutive naturals, for example, 52574 + ... + 54032.

It is an arithmetic number, because the mean of its divisors is an integer number (9819960).

Almost surely, 2^77769077 is an apocalyptic number.

It is an amenable number.

77769077 is a deficient number, since it is larger than the sum of its proper divisors (790603).

77769077 is a wasteful number, since it uses less digits than its factorization.

77769077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1963.

The product of its (nonzero) digits is 907578, while the sum is 50.

The square root of 77769077 is about 8818.6777353524. The cubic root of 77769077 is about 426.8438038764.

The spelling of 77769077 in words is "seventy-seven million, seven hundred sixty-nine thousand, seventy-seven".