307504969 has 2 divisors, whose sum is σ = 307504970. Its totient is φ = 307504968.

The previous prime is 307504943. The next prime is 307505017. The reversal of 307504969 is 969405703.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 240870400 + 66634569 = 15520^2 + 8163^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-307504969 is a prime.

It is a super-2 number, since 2×307504969² = 189118611919381922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (307504919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 153752484 + 153752485.

It is an arithmetic number, because the mean of its divisors is an integer number (153752485).

Almost surely, 2^307504969 is an apocalyptic number.

It is an amenable number.

307504969 is a deficient number, since it is larger than the sum of its proper divisors (1).

307504969 is an equidigital number, since it uses as much as digits as its factorization.

307504969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 204120, while the sum is 43.

The square root of 307504969 is about 17535.8195987527. The cubic root of 307504969 is about 674.9693403541.

The spelling of 307504969 in words is "three hundred seven million, five hundred four thousand, nine hundred sixty-nine".