77939098 has 8 divisors (see below), whose sum is σ = 117139860. Its totient is φ = 38892480.

The previous prime is 77939093. The next prime is 77939117. The reversal of 77939098 is 89093977.

It can be written as a sum of positive squares in 2 ways, for example, as 75637809 + 2301289 = 8697^2 + 1517^2 .

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

It is not an unprimeable number, because it can be changed into a prime (77939093) 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 3 ways as a sum of consecutive naturals, for example, 37263 + ... + 39298.

Almost surely, 2^77939098 is an apocalyptic number.

77939098 is a deficient number, since it is larger than the sum of its proper divisors (39200762).

77939098 is a wasteful number, since it uses less digits than its factorization.

77939098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77072.

The product of its (nonzero) digits is 857304, while the sum is 52.

The square root of 77939098 is about 8828.3122962433. The cubic root of 77939098 is about 427.1546368822.

The spelling of 77939098 in words is "seventy-seven million, nine hundred thirty-nine thousand, ninety-eight".