306807077 has 2 divisors, whose sum is σ = 306807078. Its totient is φ = 306807076.

The previous prime is 306807073. The next prime is 306807131. The reversal of 306807077 is 770708603.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 271392676 + 35414401 = 16474^2 + 5951^2 .

It is a cyclic number.

It is not a de Polignac number, because 306807077 - 2² = 306807073 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 306807077.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (306807073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 153403538 + 153403539.

It is an arithmetic number, because the mean of its divisors is an integer number (153403539).

Almost surely, 2^306807077 is an apocalyptic number.

It is an amenable number.

306807077 is a deficient number, since it is larger than the sum of its proper divisors (1).

306807077 is an equidigital number, since it uses as much as digits as its factorization.

306807077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 49392, while the sum is 38.

The square root of 306807077 is about 17515.9092541609. The cubic root of 306807077 is about 674.4583323392.

The spelling of 306807077 in words is "three hundred six million, eight hundred seven thousand, seventy-seven".