77055746 has 8 divisors (see below), whose sum is σ = 117764604. Its totient is φ = 37800880.

The previous prime is 77055743. The next prime is 77055779. The reversal of 77055746 is 64755077.

It can be written as a sum of positive squares in 2 ways, for example, as 72914521 + 4141225 = 8539^2 + 2035^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (77055743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 363365 + ... + 363576.

Almost surely, 2^77055746 is an apocalyptic number.

77055746 is a deficient number, since it is larger than the sum of its proper divisors (40708858).

77055746 is a wasteful number, since it uses less digits than its factorization.

77055746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 726996.

The product of its (nonzero) digits is 205800, while the sum is 41.

The square root of 77055746 is about 8778.1402358358. The cubic root of 77055746 is about 425.5347290055.

The spelling of 77055746 in words is "seventy-seven million, fifty-five thousand, seven hundred forty-six".