8969731 has 2 divisors, whose sum is σ = 8969732. Its totient is φ = 8969730.

The previous prime is 8969717. The next prime is 8969771. The reversal of 8969731 is 1379698.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8969731 is a prime.

It is a super-2 number, since 2×8969731² = 160912148424722, which contains 22 as substring.

It is an Ulam number.

It is a pancake number, because a pancake can be divided into 8969731 parts by 4235 straight cuts.

8969731 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (8969771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4484865 + 4484866.

It is an arithmetic number, because the mean of its divisors is an integer number (4484866).

Almost surely, 2^8969731 is an apocalyptic number.

8969731 is a deficient number, since it is larger than the sum of its proper divisors (1).

8969731 is an equidigital number, since it uses as much as digits as its factorization.

8969731 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81648, while the sum is 43.

The square root of 8969731 is about 2994.9509177948. The cubic root of 8969731 is about 207.7749275846.

The spelling of 8969731 in words is "eight million, nine hundred sixty-nine thousand, seven hundred thirty-one".