77349886 has 8 divisors (see below), whose sum is σ = 116859960. Its totient is φ = 38396568.

The previous prime is 77349871. The next prime is 77349911. The reversal of 77349886 is 68894377.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138841 + ... + 139396.

It is an arithmetic number, because the mean of its divisors is an integer number (14607495).

Almost surely, 2^77349886 is an apocalyptic number.

77349886 is a deficient number, since it is larger than the sum of its proper divisors (39510074).

77349886 is a wasteful number, since it uses less digits than its factorization.

77349886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278378.

The product of its digits is 2032128, while the sum is 52.

The square root of 77349886 is about 8794.8783959757. The cubic root of 77349886 is about 426.0754970634.

The spelling of 77349886 in words is "seventy-seven million, three hundred forty-nine thousand, eight hundred eighty-six".