77109473 has 8 divisors (see below), whose sum is σ = 88243392. Its totient is φ = 66005136.

The previous prime is 77109457. The next prime is 77109499. The reversal of 77109473 is 37490177.

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 77109473 - 2⁴ = 77109457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77109413) 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 7 ways as a sum of consecutive naturals, for example, 1490 + ... + 12507.

It is an arithmetic number, because the mean of its divisors is an integer number (11030424).

Almost surely, 2^77109473 is an apocalyptic number.

It is an amenable number.

77109473 is a deficient number, since it is larger than the sum of its proper divisors (11133919).

77109473 is a wasteful number, since it uses less digits than its factorization.

77109473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14791.

The product of its (nonzero) digits is 37044, while the sum is 38.

The square root of 77109473 is about 8781.1999749465. The cubic root of 77109473 is about 425.6336071725.

The spelling of 77109473 in words is "seventy-seven million, one hundred nine thousand, four hundred seventy-three".