70424391 has 8 divisors (see below), whose sum is σ = 94497904. Its totient is φ = 46650240.

The previous prime is 70424381. The next prime is 70424399. The reversal of 70424391 is 19342407.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 70424391 - 2⁶ = 70424327 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 (70424399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74290 + ... + 75231.

It is an arithmetic number, because the mean of its divisors is an integer number (11812238).

Almost surely, 2^70424391 is an apocalyptic number.

70424391 is a deficient number, since it is larger than the sum of its proper divisors (24073513).

70424391 is a wasteful number, since it uses less digits than its factorization.

70424391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149681.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 70424391 is about 8391.9241536134. The cubic root of 70424391 is about 412.9597269346.

Adding to 70424391 its reverse (19342407), we get a palindrome (89766798).

The spelling of 70424391 in words is "seventy million, four hundred twenty-four thousand, three hundred ninety-one".