77339949 has 8 divisors (see below), whose sum is σ = 103161600. Its totient is φ = 51539136.

The previous prime is 77339939. The next prime is 77339959. The reversal of 77339949 is 94993377.

It is an interprime number because it is at equal distance from previous prime (77339939) and next prime (77339959).

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

It is not a de Polignac number, because 77339949 - 2⁵ = 77339917 is a prime.

It is a super-2 number, since 2×77339949² = 11962935422645202, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77339939) 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, 8964 + ... + 15330.

It is an arithmetic number, because the mean of its divisors is an integer number (12895200).

Almost surely, 2^77339949 is an apocalyptic number.

It is an amenable number.

77339949 is a deficient number, since it is larger than the sum of its proper divisors (25821651).

77339949 is a wasteful number, since it uses less digits than its factorization.

77339949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10419.

The product of its digits is 1285956, while the sum is 51.

The square root of 77339949 is about 8794.3134467677. The cubic root of 77339949 is about 426.0572505657.

The spelling of 77339949 in words is "seventy-seven million, three hundred thirty-nine thousand, nine hundred forty-nine".