70923553 has 4 divisors (see below), whose sum is σ = 71399700. Its totient is φ = 70447408.

The previous prime is 70923547. The next prime is 70923571. The reversal of 70923553 is 35532907.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3157729 + 67765824 = 1777^2 + 8232^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70923553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70923353) 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, 237850 + ... + 238147.

It is an arithmetic number, because the mean of its divisors is an integer number (17849925).

Almost surely, 2^70923553 is an apocalyptic number.

It is an amenable number.

70923553 is a deficient number, since it is larger than the sum of its proper divisors (476147).

70923553 is a wasteful number, since it uses less digits than its factorization.

70923553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476146.

The product of its (nonzero) digits is 28350, while the sum is 34.

The square root of 70923553 is about 8421.6122565694. The cubic root of 70923553 is about 413.9331050947.

The spelling of 70923553 in words is "seventy million, nine hundred twenty-three thousand, five hundred fifty-three".