77654066 has 16 divisors (see below), whose sum is σ = 134096256. Its totient is φ = 33036576.

The previous prime is 77654047. The next prime is 77654081. The reversal of 77654066 is 66045677.

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, 18326 + ... + 22161.

It is an arithmetic number, because the mean of its divisors is an integer number (8381016).

Almost surely, 2^77654066 is an apocalyptic number.

77654066 is a deficient number, since it is larger than the sum of its proper divisors (56442190).

77654066 is a wasteful number, since it uses less digits than its factorization.

77654066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40633.

The product of its (nonzero) digits is 211680, while the sum is 41.

The square root of 77654066 is about 8812.1544471259. The cubic root of 77654066 is about 426.6332833853.

The spelling of 77654066 in words is "seventy-seven million, six hundred fifty-four thousand, sixty-six".