77745814 has 8 divisors (see below), whose sum is σ = 116704728. Its totient is φ = 38844240.

The previous prime is 77745797. The next prime is 77745821. The reversal of 77745814 is 41854777.

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, 10767 + ... + 16474.

It is an arithmetic number, because the mean of its divisors is an integer number (14588091).

Almost surely, 2^77745814 is an apocalyptic number.

77745814 is a deficient number, since it is larger than the sum of its proper divisors (38958914).

77745814 is a wasteful number, since it uses less digits than its factorization.

77745814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28670.

The product of its digits is 219520, while the sum is 43.

The square root of 77745814 is about 8817.3586747960. The cubic root of 77745814 is about 426.8012391534.

The spelling of 77745814 in words is "seventy-seven million, seven hundred forty-five thousand, eight hundred fourteen".