77074217 has 16 divisors (see below), whose sum is σ = 85966080. Its totient is φ = 69086160.

The previous prime is 77074213. The next prime is 77074229. The reversal of 77074217 is 71247077.

It is not a de Polignac number, because 77074217 - 2² = 77074213 is a prime.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77074213) 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 15 ways as a sum of consecutive naturals, for example, 104783 + ... + 105515.

It is an arithmetic number, because the mean of its divisors is an integer number (5372880).

Almost surely, 2^77074217 is an apocalyptic number.

It is an amenable number.

77074217 is a deficient number, since it is larger than the sum of its proper divisors (8891863).

77074217 is an equidigital number, since it uses as much as digits as its factorization.

77074217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 845 (or 823 counting only the distinct ones).

The product of its (nonzero) digits is 19208, while the sum is 35.

The square root of 77074217 is about 8779.1922749191. The cubic root of 77074217 is about 425.5687278718.

The spelling of 77074217 in words is "seventy-seven million, seventy-four thousand, two hundred seventeen".