77934481 has 8 divisors (see below), whose sum is σ = 79962624. Its totient is φ = 75912480.

The previous prime is 77934449. The next prime is 77934487. The reversal of 77934481 is 18443977.

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 77934481 - 2⁵ = 77934449 is a prime.

It is a super-2 number, since 2×77934481² = 12147566657478722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77934487) 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, 35296 + ... + 37438.

It is an arithmetic number, because the mean of its divisors is an integer number (9995328).

Almost surely, 2^77934481 is an apocalyptic number.

It is an amenable number.

77934481 is a deficient number, since it is larger than the sum of its proper divisors (2028143).

77934481 is a wasteful number, since it uses less digits than its factorization.

77934481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3071.

The product of its digits is 169344, while the sum is 43.

The square root of 77934481 is about 8828.0508041130. The cubic root of 77934481 is about 427.1462020404.

The spelling of 77934481 in words is "seventy-seven million, nine hundred thirty-four thousand, four hundred eighty-one".