77214066 has 16 divisors (see below), whose sum is σ = 159753600. Its totient is φ = 24850448.

The previous prime is 77214019. The next prime is 77214073. The reversal of 77214066 is 66041277.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 221706 + ... + 222053.

It is an arithmetic number, because the mean of its divisors is an integer number (9984600).

Almost surely, 2^77214066 is an apocalyptic number.

77214066 is an abundant number, since it is smaller than the sum of its proper divisors (82539534).

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

77214066 is a wasteful number, since it uses less digits than its factorization.

77214066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443793.

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 77214066 is about 8787.1534640064. The cubic root of 77214066 is about 425.8259665147.

The spelling of 77214066 in words is "seventy-seven million, two hundred fourteen thousand, sixty-six".