9240739 has 2 divisors, whose sum is σ = 9240740. Its totient is φ = 9240738.

The previous prime is 9240731. The next prime is 9240767. The reversal of 9240739 is 9370429.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9240739 - 2³ = 9240731 is a prime.

It is a super-2 number, since 2×9240739² = 170782514532242, which contains 22 as substring.

9240739 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (9240731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4620369 + 4620370.

It is an arithmetic number, because the mean of its divisors is an integer number (4620370).

Almost surely, 2^9240739 is an apocalyptic number.

9240739 is a deficient number, since it is larger than the sum of its proper divisors (1).

9240739 is an equidigital number, since it uses as much as digits as its factorization.

9240739 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 9240739 is about 3039.8583848594. The cubic root of 9240739 is about 209.8467438133.

It can be divided in two parts, 9240 and 739, that multiplied together give a triangular number (6828360 = T₃₆₉₅).

The spelling of 9240739 in words is "nine million, two hundred forty thousand, seven hundred thirty-nine".