77739046 has 16 divisors (see below), whose sum is σ = 145382400. Its totient is φ = 30287880.

The previous prime is 77739043. The next prime is 77739091. The reversal of 77739046 is 64093777.

It is a junction number, because it is equal to n+sod(n) for n = 77738993 and 77739011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77739043) 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, 252246 + ... + 252553.

It is an arithmetic number, because the mean of its divisors is an integer number (9086400).

Almost surely, 2^77739046 is an apocalyptic number.

77739046 is a deficient number, since it is larger than the sum of its proper divisors (67643354).

77739046 is a wasteful number, since it uses less digits than its factorization.

77739046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504819.

The product of its (nonzero) digits is 222264, while the sum is 43.

The square root of 77739046 is about 8816.9748780407. The cubic root of 77739046 is about 426.7888540296.

The spelling of 77739046 in words is "seventy-seven million, seven hundred thirty-nine thousand, forty-six".