70928761 has 2 divisors, whose sum is σ = 70928762. Its totient is φ = 70928760.

The previous prime is 70928749. The next prime is 70928773. The reversal of 70928761 is 16782907.

It is a balanced prime because it is at equal distance from previous prime (70928749) and next prime (70928773).

It can be written as a sum of positive squares in only one way, i.e., 66928761 + 4000000 = 8181^2 + 2000^2 .

It is a cyclic number.

It is not a de Polignac number, because 70928761 - 2⁷ = 70928633 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (70928701) 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 as a sum of consecutive naturals, namely, 35464380 + 35464381.

It is an arithmetic number, because the mean of its divisors is an integer number (35464381).

Almost surely, 2^70928761 is an apocalyptic number.

It is an amenable number.

70928761 is a deficient number, since it is larger than the sum of its proper divisors (1).

70928761 is an equidigital number, since it uses as much as digits as its factorization.

70928761 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42336, while the sum is 40.

The square root of 70928761 is about 8421.9214553450. The cubic root of 70928761 is about 413.9432367118.

The spelling of 70928761 in words is "seventy million, nine hundred twenty-eight thousand, seven hundred sixty-one".