77211042 has 16 divisors (see below), whose sum is σ = 163505952. Its totient is φ = 24223040.

The previous prime is 77211011. The next prime is 77211097. The reversal of 77211042 is 24011277.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 378384 + ... + 378587.

It is an arithmetic number, because the mean of its divisors is an integer number (10219122).

Almost surely, 2^77211042 is an apocalyptic number.

77211042 is an abundant number, since it is smaller than the sum of its proper divisors (86294910).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77211042 is a wasteful number, since it uses less digits than its factorization.

77211042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756993.

The product of its (nonzero) digits is 784, while the sum is 24.

The square root of 77211042 is about 8786.9813929472. The cubic root of 77211042 is about 425.8204074475.

The spelling of 77211042 in words is "seventy-seven million, two hundred eleven thousand, forty-two".