70811623 has 8 divisors (see below), whose sum is σ = 72167760. Its totient is φ = 69460800.

The previous prime is 70811621. The next prime is 70811639. The reversal of 70811623 is 32611807.

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

It is a cyclic number.

It is not a de Polignac number, because 70811623 - 2¹ = 70811621 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70811591 and 70811600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70811621) 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, 34461 + ... + 36457.

It is an arithmetic number, because the mean of its divisors is an integer number (9020970).

Almost surely, 2^70811623 is an apocalyptic number.

70811623 is a deficient number, since it is larger than the sum of its proper divisors (1356137).

70811623 is a wasteful number, since it uses less digits than its factorization.

70811623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2657.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 70811623 is about 8414.9642304647. The cubic root of 70811623 is about 413.7152370522.

The spelling of 70811623 in words is "seventy million, eight hundred eleven thousand, six hundred twenty-three".