70481391 has 8 divisors (see below), whose sum is σ = 94386480. Its totient is φ = 46781952.

The previous prime is 70481381. The next prime is 70481399. The reversal of 70481391 is 19318407.

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

It is a de Polignac number, because none of the positive numbers 2^k-70481391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70481399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50610 + ... + 51983.

It is an arithmetic number, because the mean of its divisors is an integer number (11798310).

Almost surely, 2^70481391 is an apocalyptic number.

70481391 is a deficient number, since it is larger than the sum of its proper divisors (23905089).

70481391 is a wasteful number, since it uses less digits than its factorization.

70481391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102825.

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 70481391 is about 8395.3195889138. The cubic root of 70481391 is about 413.0711104878.

Adding to 70481391 its reverse (19318407), we get a palindrome (89799798).

The spelling of 70481391 in words is "seventy million, four hundred eighty-one thousand, three hundred ninety-one".