70723234 has 4 divisors (see below), whose sum is σ = 106084854. Its totient is φ = 35361616.

The previous prime is 70723231. The next prime is 70723259. The reversal of 70723234 is 43232707.

70723234 = T₆₈₆₅ + T₆₈₆₆ + T₆₈₆₇.

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

It can be written as a sum of positive squares in only one way, i.e., 69772609 + 950625 = 8353^2 + 975^2 .

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (70723231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17680807 + ... + 17680810.

Almost surely, 2^70723234 is an apocalyptic number.

70723234 is the 6867-th centered triangular number.

70723234 is a deficient number, since it is larger than the sum of its proper divisors (35361620).

70723234 is a wasteful number, since it uses less digits than its factorization.

70723234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35361619.

The product of its (nonzero) digits is 7056, while the sum is 28.

The square root of 70723234 is about 8409.7106965698. The cubic root of 70723234 is about 413.5430284980.

The spelling of 70723234 in words is "seventy million, seven hundred twenty-three thousand, two hundred thirty-four".