77857006 has 8 divisors (see below), whose sum is σ = 117091584. Its totient is φ = 38826480.

The previous prime is 77856997. The next prime is 77857019. The reversal of 77857006 is 60075877.

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

It is a self number, because there is not a number n which added to its sum of digits gives 77857006.

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, 50055 + ... + 51586.

It is an arithmetic number, because the mean of its divisors is an integer number (14636448).

Almost surely, 2^77857006 is an apocalyptic number.

77857006 is a deficient number, since it is larger than the sum of its proper divisors (39234578).

77857006 is a wasteful number, since it uses less digits than its factorization.

77857006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102026.

The product of its (nonzero) digits is 82320, while the sum is 40.

The square root of 77857006 is about 8823.6617115572. The cubic root of 77857006 is about 427.0046124912.

The spelling of 77857006 in words is "seventy-seven million, eight hundred fifty-seven thousand, six".