70857953 has 2 divisors, whose sum is σ = 70857954. Its totient is φ = 70857952.

The previous prime is 70857947. The next prime is 70857977. The reversal of 70857953 is 35975807.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59413264 + 11444689 = 7708^2 + 3383^2 .

It is a cyclic number.

It is not a de Polignac number, because 70857953 - 2⁸ = 70857697 is a prime.

It is not a weakly prime, because it can be changed into another prime (70856953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35428976 + 35428977.

It is an arithmetic number, because the mean of its divisors is an integer number (35428977).

Almost surely, 2^70857953 is an apocalyptic number.

It is an amenable number.

70857953 is a deficient number, since it is larger than the sum of its proper divisors (1).

70857953 is an equidigital number, since it uses as much as digits as its factorization.

70857953 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 264600, while the sum is 44.

The square root of 70857953 is about 8417.7166143795. The cubic root of 70857953 is about 413.8054446923.

The spelling of 70857953 in words is "seventy million, eight hundred fifty-seven thousand, nine hundred fifty-three".