77126806 has 8 divisors (see below), whose sum is σ = 117651240. Its totient is φ = 37909728.

The previous prime is 77126789. The next prime is 77126813. The reversal of 77126806 is 60862177.

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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 326691 + ... + 326926.

It is an arithmetic number, because the mean of its divisors is an integer number (14706405).

Almost surely, 2^77126806 is an apocalyptic number.

77126806 is a deficient number, since it is larger than the sum of its proper divisors (40524434).

77126806 is a wasteful number, since it uses less digits than its factorization.

77126806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653678.

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 77126806 is about 8782.1868574974. The cubic root of 77126806 is about 425.6654967027.

The spelling of 77126806 in words is "seventy-seven million, one hundred twenty-six thousand, eight hundred six".