823023957 has 8 divisors (see below), whose sum is σ = 1254131776. Its totient is φ = 470299392.

The previous prime is 823023947. The next prime is 823023959. The reversal of 823023957 is 759320328.

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

It is not a de Polignac number, because 823023957 - 2¹⁵ = 822991189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (823023959) 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, 19595788 + ... + 19595829.

It is an arithmetic number, because the mean of its divisors is an integer number (156766472).

Almost surely, 2^823023957 is an apocalyptic number.

It is an amenable number.

823023957 is a deficient number, since it is larger than the sum of its proper divisors (431107819).

823023957 is a wasteful number, since it uses less digits than its factorization.

823023957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39191627.

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 823023957 is about 28688.3941167853. The cubic root of 823023957 is about 937.1393175376.

The spelling of 823023957 in words is "eight hundred twenty-three million, twenty-three thousand, nine hundred fifty-seven".