70042097 has 4 divisors (see below), whose sum is σ = 71363700. Its totient is φ = 68720496.

The previous prime is 70042087. The next prime is 70042109. The reversal of 70042097 is 79024007.

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 50822641 + 19219456 = 7129^2 + 4384^2 .

It is a cyclic number.

It is not a de Polignac number, because 70042097 - 2⁸ = 70041841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70042067) 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, 660722 + ... + 660827.

It is an arithmetic number, because the mean of its divisors is an integer number (17840925).

Almost surely, 2^70042097 is an apocalyptic number.

It is an amenable number.

70042097 is a deficient number, since it is larger than the sum of its proper divisors (1321603).

70042097 is a wasteful number, since it uses less digits than its factorization.

70042097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1321602.

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 70042097 is about 8369.1156641547. The cubic root of 70042097 is about 412.2111294951.

The spelling of 70042097 in words is "seventy million, forty-two thousand, ninety-seven".