70422539 has 4 divisors (see below), whose sum is σ = 76824600. Its totient is φ = 64020480.

The previous prime is 70422533. The next prime is 70422559. The reversal of 70422539 is 93522407.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 70422539 - 2⁴ = 70422523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70422533) 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, 3201014 + ... + 3201035.

It is an arithmetic number, because the mean of its divisors is an integer number (19206150).

Almost surely, 2^70422539 is an apocalyptic number.

70422539 is a deficient number, since it is larger than the sum of its proper divisors (6402061).

70422539 is a wasteful number, since it uses less digits than its factorization.

70422539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6402060.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 70422539 is about 8391.8138087067. The cubic root of 70422539 is about 412.9561069382.

The spelling of 70422539 in words is "seventy million, four hundred twenty-two thousand, five hundred thirty-nine".