70394897 has 2 divisors, whose sum is σ = 70394898. Its totient is φ = 70394896.

The previous prime is 70394869. The next prime is 70394921. The reversal of 70394897 is 79849307.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67831696 + 2563201 = 8236^2 + 1601^2 .

It is a cyclic number.

It is not a de Polignac number, because 70394897 - 2⁸ = 70394641 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (70394497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35197448 + 35197449.

It is an arithmetic number, because the mean of its divisors is an integer number (35197449).

Almost surely, 2^70394897 is an apocalyptic number.

It is an amenable number.

70394897 is a deficient number, since it is larger than the sum of its proper divisors (1).

70394897 is an equidigital number, since it uses as much as digits as its factorization.

70394897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 381024, while the sum is 47.

The square root of 70394897 is about 8390.1666848758. The cubic root of 70394897 is about 412.9020691888.

The spelling of 70394897 in words is "seventy million, three hundred ninety-four thousand, eight hundred ninety-seven".