70748861 has 2 divisors, whose sum is σ = 70748862. Its totient is φ = 70748860.

The previous prime is 70748857. The next prime is 70748879. The reversal of 70748861 is 16884707.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60062500 + 10686361 = 7750^2 + 3269^2 .

It is a cyclic number.

It is not a de Polignac number, because 70748861 - 2² = 70748857 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70748261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35374430 + 35374431.

It is an arithmetic number, because the mean of its divisors is an integer number (35374431).

Almost surely, 2^70748861 is an apocalyptic number.

It is an amenable number.

70748861 is a deficient number, since it is larger than the sum of its proper divisors (1).

70748861 is an equidigital number, since it uses as much as digits as its factorization.

70748861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75264, while the sum is 41.

The square root of 70748861 is about 8411.2342138357. The cubic root of 70748861 is about 413.5929724216.

The spelling of 70748861 in words is "seventy million, seven hundred forty-eight thousand, eight hundred sixty-one".