77740306 has 16 divisors (see below), whose sum is σ = 134591040. Its totient is φ = 32986800.

The previous prime is 77740283. The next prime is 77740307. The reversal of 77740306 is 60304777.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (77740307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26076 + ... + 28903.

It is an arithmetic number, because the mean of its divisors is an integer number (8411940).

Almost surely, 2^77740306 is an apocalyptic number.

77740306 is a deficient number, since it is larger than the sum of its proper divisors (56850734).

77740306 is a wasteful number, since it uses less digits than its factorization.

77740306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55089.

The product of its (nonzero) digits is 24696, while the sum is 34.

The square root of 77740306 is about 8817.0463308298. The cubic root of 77740306 is about 426.7911598252.

The spelling of 77740306 in words is "seventy-seven million, seven hundred forty thousand, three hundred six".