77700146 has 8 divisors (see below), whose sum is σ = 116591664. Its totient is φ = 38836260.

The previous prime is 77700143. The next prime is 77700151. The reversal of 77700146 is 64100777.

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 (77700143) 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, 2921 + ... + 12803.

It is an arithmetic number, because the mean of its divisors is an integer number (14573958).

Almost surely, 2^77700146 is an apocalyptic number.

77700146 is a deficient number, since it is larger than the sum of its proper divisors (38891518).

77700146 is a wasteful number, since it uses less digits than its factorization.

77700146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13816.

The product of its (nonzero) digits is 8232, while the sum is 32.

The square root of 77700146 is about 8814.7686299755. The cubic root of 77700146 is about 426.7176549037.

The spelling of 77700146 in words is "seventy-seven million, seven hundred thousand, one hundred forty-six".