8426969 has 2 divisors, whose sum is σ = 8426970. Its totient is φ = 8426968.

The previous prime is 8426953. The next prime is 8426983. The reversal of 8426969 is 9696248.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6697744 + 1729225 = 2588^2 + 1315^2 .

It is a cyclic number.

It is not a de Polignac number, because 8426969 - 2⁴ = 8426953 is a prime.

It is a super-2 number, since 2×8426969² = 142027613053922, which contains 22 as substring.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (8426939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4213484 + 4213485.

It is an arithmetic number, because the mean of its divisors is an integer number (4213485).

Almost surely, 2^8426969 is an apocalyptic number.

It is an amenable number.

8426969 is a deficient number, since it is larger than the sum of its proper divisors (1).

8426969 is an equidigital number, since it uses as much as digits as its factorization.

8426969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 186624, while the sum is 44.

The square root of 8426969 is about 2902.9242153387. The cubic root of 8426969 is about 203.4965881101.

The spelling of 8426969 in words is "eight million, four hundred twenty-six thousand, nine hundred sixty-nine".