70240757 has 2 divisors, whose sum is σ = 70240758. Its totient is φ = 70240756.

The previous prime is 70240721. The next prime is 70240769. The reversal of 70240757 is 75704207.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61324561 + 8916196 = 7831^2 + 2986^2 .

It is an emirp because it is prime and its reverse (75704207) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70240757 - 2⁶ = 70240693 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70240057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35120378 + 35120379.

It is an arithmetic number, because the mean of its divisors is an integer number (35120379).

Almost surely, 2^70240757 is an apocalyptic number.

It is an amenable number.

70240757 is a deficient number, since it is larger than the sum of its proper divisors (1).

70240757 is an equidigital number, since it uses as much as digits as its factorization.

70240757 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13720, while the sum is 32.

The square root of 70240757 is about 8380.9758978296. The cubic root of 70240757 is about 412.6004789816.

The spelling of 70240757 in words is "seventy million, two hundred forty thousand, seven hundred fifty-seven".