77942214 has 24 divisors (see below), whose sum is σ = 193000080. Its totient is φ = 22269168.

The previous prime is 77942213. The next prime is 77942219. The reversal of 77942214 is 41224977.

It is a super-3 number, since 3×77942214³ (a number of 25 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77942213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 309169 + ... + 309420.

It is an arithmetic number, because the mean of its divisors is an integer number (8041670).

Almost surely, 2^77942214 is an apocalyptic number.

77942214 is an abundant number, since it is smaller than the sum of its proper divisors (115057866).

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

77942214 is a wasteful number, since it uses less digits than its factorization.

77942214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618604 (or 618601 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 77942214 is about 8828.4887721512. The cubic root of 77942214 is about 427.1603293445.

The spelling of 77942214 in words is "seventy-seven million, nine hundred forty-two thousand, two hundred fourteen".