306916969 has 4 divisors (see below), whose sum is σ = 307082880. Its totient is φ = 306751060.

The previous prime is 306916949. The next prime is 306917029. The reversal of 306916969 is 969619603.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 969619603 = 967 ⋅1002709.

It is a cyclic number.

It is not a de Polignac number, because 306916969 - 2²¹ = 304819817 is a prime.

It is a super-2 number, since 2×306916969² = 188396051720293922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (306916949) 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, 80149 + ... + 83890.

It is an arithmetic number, because the mean of its divisors is an integer number (76770720).

Almost surely, 2^306916969 is an apocalyptic number.

It is an amenable number.

306916969 is a deficient number, since it is larger than the sum of its proper divisors (165911).

306916969 is a wasteful number, since it uses less digits than its factorization.

306916969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165910.

The product of its (nonzero) digits is 472392, while the sum is 49.

The square root of 306916969 is about 17519.0458929703. The cubic root of 306916969 is about 674.5388484390.

The spelling of 306916969 in words is "three hundred six million, nine hundred sixteen thousand, nine hundred sixty-nine".