70297893 has 6 divisors (see below), whose sum is σ = 101541414. Its totient is φ = 46865256.

The previous prime is 70297879. The next prime is 70297901. The reversal of 70297893 is 39879207.

It can be written as a sum of positive squares in only one way, i.e., 47858724 + 22439169 = 6918^2 + 4737^2 .

It is not a de Polignac number, because 70297893 - 2²² = 66103589 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70297813) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3905430 + ... + 3905447.

It is an arithmetic number, because the mean of its divisors is an integer number (16923569).

Almost surely, 2^70297893 is an apocalyptic number.

It is an amenable number.

70297893 is a deficient number, since it is larger than the sum of its proper divisors (31243521).

70297893 is a wasteful number, since it uses less digits than its factorization.

70297893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7810883 (or 7810880 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 45.

The square root of 70297893 is about 8384.3838771850. The cubic root of 70297893 is about 412.7123226501.

The spelling of 70297893 in words is "seventy million, two hundred ninety-seven thousand, eight hundred ninety-three".