70737223 has 4 divisors (see below), whose sum is σ = 70891128. Its totient is φ = 70583320.

The previous prime is 70737211. The next prime is 70737241. The reversal of 70737223 is 32273707.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70737223 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70737203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76261 + ... + 77182.

It is an arithmetic number, because the mean of its divisors is an integer number (17722782).

Almost surely, 2^70737223 is an apocalyptic number.

70737223 is a deficient number, since it is larger than the sum of its proper divisors (153905).

70737223 is a wasteful number, since it uses less digits than its factorization.

70737223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153904.

The product of its (nonzero) digits is 12348, while the sum is 31.

The square root of 70737223 is about 8410.5423725227. The cubic root of 70737223 is about 413.5702928622.

The spelling of 70737223 in words is "seventy million, seven hundred thirty-seven thousand, two hundred twenty-three".