70723990 has 8 divisors (see below), whose sum is σ = 127303200. Its totient is φ = 28289592.

The previous prime is 70723987. The next prime is 70723993. The reversal of 70723990 is 9932707.

It is an interprime number because it is at equal distance from previous prime (70723987) and next prime (70723993).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70723993) 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, 3536190 + ... + 3536209.

It is an arithmetic number, because the mean of its divisors is an integer number (15912900).

Almost surely, 2^70723990 is an apocalyptic number.

70723990 is a deficient number, since it is larger than the sum of its proper divisors (56579210).

70723990 is a wasteful number, since it uses less digits than its factorization.

70723990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7072406.

The product of its (nonzero) digits is 23814, while the sum is 37.

The square root of 70723990 is about 8409.7556444881. The cubic root of 70723990 is about 413.5445020232.

The spelling of 70723990 in words is "seventy million, seven hundred twenty-three thousand, nine hundred ninety".