70083697 has 2 divisors, whose sum is σ = 70083698. Its totient is φ = 70083696.

The previous prime is 70083659. The next prime is 70083703. The reversal of 70083697 is 79638007.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64705936 + 5377761 = 8044^2 + 2319^2 .

It is an emirp because it is prime and its reverse (79638007) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70083697 is a prime.

It is not a weakly prime, because it can be changed into another prime (70083397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35041848 + 35041849.

It is an arithmetic number, because the mean of its divisors is an integer number (35041849).

Almost surely, 2^70083697 is an apocalyptic number.

It is an amenable number.

70083697 is a deficient number, since it is larger than the sum of its proper divisors (1).

70083697 is an equidigital number, since it uses as much as digits as its factorization.

70083697 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 70083697 is about 8371.6006235367. The cubic root of 70083697 is about 412.2927213280.

The spelling of 70083697 in words is "seventy million, eighty-three thousand, six hundred ninety-seven".