70912057 has 2 divisors, whose sum is σ = 70912058. Its totient is φ = 70912056.

The previous prime is 70912027. The next prime is 70912087. The reversal of 70912057 is 75021907.

It is a balanced prime because it is at equal distance from previous prime (70912027) and next prime (70912087).

It can be written as a sum of positive squares in only one way, i.e., 66896041 + 4016016 = 8179^2 + 2004^2 .

It is an emirp because it is prime and its reverse (75021907) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70912057 is a prime.

It is not a weakly prime, because it can be changed into another prime (70912007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35456028 + 35456029.

It is an arithmetic number, because the mean of its divisors is an integer number (35456029).

Almost surely, 2^70912057 is an apocalyptic number.

It is an amenable number.

70912057 is a deficient number, since it is larger than the sum of its proper divisors (1).

70912057 is an equidigital number, since it uses as much as digits as its factorization.

70912057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4410, while the sum is 31.

The square root of 70912057 is about 8420.9296992672. The cubic root of 70912057 is about 413.9107390780.

The spelling of 70912057 in words is "seventy million, nine hundred twelve thousand, fifty-seven".