77641306 has 8 divisors (see below), whose sum is σ = 117159840. Its totient is φ = 38588028.

The previous prime is 77641303. The next prime is 77641327. The reversal of 77641306 is 60314677.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (77641303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115896 + ... + 116563.

It is an arithmetic number, because the mean of its divisors is an integer number (14644980).

Almost surely, 2^77641306 is an apocalyptic number.

77641306 is a deficient number, since it is larger than the sum of its proper divisors (39518534).

77641306 is a wasteful number, since it uses less digits than its factorization.

77641306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232628.

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 77641306 is about 8811.4304173613. The cubic root of 77641306 is about 426.6099141908.

The spelling of 77641306 in words is "seventy-seven million, six hundred forty-one thousand, three hundred six".