70422727 has 4 divisors (see below), whose sum is σ = 70756696. Its totient is φ = 70088760.

The previous prime is 70422697. The next prime is 70422739. The reversal of 70422727 is 72722407.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70422727 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70422787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166668 + ... + 167089.

It is an arithmetic number, because the mean of its divisors is an integer number (17689174).

Almost surely, 2^70422727 is an apocalyptic number.

70422727 is a deficient number, since it is larger than the sum of its proper divisors (333969).

70422727 is a wasteful number, since it uses less digits than its factorization.

70422727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333968.

The product of its (nonzero) digits is 10976, while the sum is 31.

The square root of 70422727 is about 8391.8250100917. The cubic root of 70422727 is about 412.9564744137.

The spelling of 70422727 in words is "seventy million, four hundred twenty-two thousand, seven hundred twenty-seven".