70108723 has 4 divisors (see below), whose sum is σ = 70417800. Its totient is φ = 69799648.

The previous prime is 70108693. The next prime is 70108777. The reversal of 70108723 is 32780107.

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 70108723 - 2⁹ = 70108211 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70108691 and 70108700.

It is not an unprimeable number, because it can be changed into a prime (70108783) 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 3 ways as a sum of consecutive naturals, for example, 154198 + ... + 154651.

It is an arithmetic number, because the mean of its divisors is an integer number (17604450).

Almost surely, 2^70108723 is an apocalyptic number.

70108723 is a deficient number, since it is larger than the sum of its proper divisors (309077).

70108723 is a wasteful number, since it uses less digits than its factorization.

70108723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309076.

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 70108723 is about 8373.0951863693. The cubic root of 70108723 is about 412.3417903230.

The spelling of 70108723 in words is "seventy million, one hundred eight thousand, seven hundred twenty-three".