70424897 has 4 divisors (see below), whose sum is σ = 74567556. Its totient is φ = 66282240.

The previous prime is 70424869. The next prime is 70424903. The reversal of 70424897 is 79842407.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 37258816 + 33166081 = 6104^2 + 5759^2 .

It is a cyclic number.

It is not a de Polignac number, because 70424897 - 2¹⁶ = 70359361 is a prime.

It is a super-2 number, since 2×70424897² = 9919332234921218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70424857) 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, 2071304 + ... + 2071337.

It is an arithmetic number, because the mean of its divisors is an integer number (18641889).

Almost surely, 2^70424897 is an apocalyptic number.

It is an amenable number.

70424897 is a deficient number, since it is larger than the sum of its proper divisors (4142659).

70424897 is a wasteful number, since it uses less digits than its factorization.

70424897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4142658.

The product of its (nonzero) digits is 112896, while the sum is 41.

The square root of 70424897 is about 8391.9543015915. The cubic root of 70424897 is about 412.9607159722.

The spelling of 70424897 in words is "seventy million, four hundred twenty-four thousand, eight hundred ninety-seven".