70090297 has 4 divisors (see below), whose sum is σ = 73779280. Its totient is φ = 66401316.

The previous prime is 70090283. The next prime is 70090313. The reversal of 70090297 is 79209007.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 79209007 = 41 ⋅1931927.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70090297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70090217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1844463 + ... + 1844500.

It is an arithmetic number, because the mean of its divisors is an integer number (18444820).

Almost surely, 2^70090297 is an apocalyptic number.

It is an amenable number.

70090297 is a deficient number, since it is larger than the sum of its proper divisors (3688983).

70090297 is a wasteful number, since it uses less digits than its factorization.

70090297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3688982.

The product of its (nonzero) digits is 7938, while the sum is 34.

The square root of 70090297 is about 8371.9948041073. The cubic root of 70090297 is about 412.3056632183.

The spelling of 70090297 in words is "seventy million, ninety thousand, two hundred ninety-seven".