823070381 has 8 divisors (see below), whose sum is σ = 947519040. Its totient is φ = 700338528.

The previous prime is 823070357. The next prime is 823070383. The reversal of 823070381 is 183070328.

823070381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 823070381 - 2²⁶ = 755961517 is a prime.

It is a super-2 number, since 2×823070381² = 1354889704158970322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (823070383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 428171 + ... + 430088.

It is an arithmetic number, because the mean of its divisors is an integer number (118439880).

Almost surely, 2^823070381 is an apocalyptic number.

It is an amenable number.

823070381 is a deficient number, since it is larger than the sum of its proper divisors (124448659).

823070381 is a wasteful number, since it uses less digits than its factorization.

823070381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858403.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 823070381 is about 28689.2032130556. The cubic root of 823070381 is about 937.1569374936.

The spelling of 823070381 in words is "eight hundred twenty-three million, seventy thousand, three hundred eighty-one".