623950397 has 8 divisors (see below), whose sum is σ = 726541056. Its totient is φ = 524723472.

The previous prime is 623950391. The next prime is 623950433. The reversal of 623950397 is 793059326.

623950397 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 not a de Polignac number, because 623950397 - 2¹⁰ = 623949373 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 (623950391) 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, 840533 + ... + 841274.

It is an arithmetic number, because the mean of its divisors is an integer number (90817632).

Almost surely, 2^623950397 is an apocalyptic number.

It is an amenable number.

623950397 is a deficient number, since it is larger than the sum of its proper divisors (102590659).

623950397 is a wasteful number, since it uses less digits than its factorization.

623950397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1681867.

The product of its (nonzero) digits is 306180, while the sum is 44.

The square root of 623950397 is about 24978.9991192602. Note that the first 3 decimals coincide. The cubic root of 623950397 is about 854.5090929310.

Adding to 623950397 its sum of digits (44), we get a square (623950441 = 24979²).

The spelling of 623950397 in words is "six hundred twenty-three million, nine hundred fifty thousand, three hundred ninety-seven".