70297361 has 4 divisors (see below), whose sum is σ = 73353792. Its totient is φ = 67240932.

The previous prime is 70297343. The next prime is 70297387. The reversal of 70297361 is 16379207.

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: 16379207 = 13 ⋅1259939.

It is a cyclic number.

It is not a de Polignac number, because 70297361 - 2²² = 66103057 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (70297301) 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, 1528181 + ... + 1528226.

It is an arithmetic number, because the mean of its divisors is an integer number (18338448).

Almost surely, 2^70297361 is an apocalyptic number.

It is an amenable number.

70297361 is a deficient number, since it is larger than the sum of its proper divisors (3056431).

70297361 is a wasteful number, since it uses less digits than its factorization.

70297361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3056430.

The product of its (nonzero) digits is 15876, while the sum is 35.

The square root of 70297361 is about 8384.3521514784. The cubic root of 70297361 is about 412.7112815402.

The spelling of 70297361 in words is "seventy million, two hundred ninety-seven thousand, three hundred sixty-one".