307894489 has 6 divisors (see below), whose sum is σ = 358163034. Its totient is φ = 263909520.

The previous prime is 307894453. The next prime is 307894493. The reversal of 307894489 is 984498703.

It can be written as a sum of positive squares in only one way, i.e., 222516889 + 85377600 = 14917^2 + 9240^2 .

It is not a de Polignac number, because 307894489 - 2⁹ = 307893977 is a prime.

It is a super-2 number, since 2×307894489² = 189598032713142242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (307894439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3141732 + ... + 3141829.

It is an arithmetic number, because the mean of its divisors is an integer number (59693839).

Almost surely, 2^307894489 is an apocalyptic number.

It is an amenable number.

307894489 is a deficient number, since it is larger than the sum of its proper divisors (50268545).

307894489 is an equidigital number, since it uses as much as digits as its factorization.

307894489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6283575 (or 6283568 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 52.

The square root of 307894489 is about 17546.9224937024. The cubic root of 307894489 is about 675.2542171853.

The spelling of 307894489 in words is "three hundred seven million, eight hundred ninety-four thousand, four hundred eighty-nine".