77066077 has 8 divisors (see below), whose sum is σ = 87727680. Its totient is φ = 67013760.

The previous prime is 77066069. The next prime is 77066107.

77066077 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 77066077 - 2³ = 77066069 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 (77066177) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152052 + ... + 152557.

It is an arithmetic number, because the mean of its divisors is an integer number (10965960).

Almost surely, 2^77066077 is an apocalyptic number.

It is an amenable number.

77066077 is a deficient number, since it is larger than the sum of its proper divisors (10661603).

77066077 is a wasteful number, since it uses less digits than its factorization.

77066077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304643.

The product of its (nonzero) digits is 86436, while the sum is 40.

The square root of 77066077 is about 8778.7286664984. The cubic root of 77066077 is about 425.5537455533.

The spelling of 77066077 in words is "seventy-seven million, sixty-six thousand, seventy-seven".