623469493 has 8 divisors (see below), whose sum is σ = 639397080. Its totient is φ = 607576320.

The previous prime is 623469481. The next prime is 623469547. The reversal of 623469493 is 394964326.

623469493 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 13527684 + 609941809 = 3678^2 + 24697^2 .

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 623469493 - 2²¹ = 621372341 is a prime.

It is a super-3 number, since 3×623469493³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623469433) 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, 30303 + ... + 46531.

It is an arithmetic number, because the mean of its divisors is an integer number (79924635).

Almost surely, 2^623469493 is an apocalyptic number.

It is an amenable number.

623469493 is a deficient number, since it is larger than the sum of its proper divisors (15927587).

623469493 is a wasteful number, since it uses less digits than its factorization.

623469493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17207.

The product of its digits is 839808, while the sum is 46.

The square root of 623469493 is about 24969.3710974065. The cubic root of 623469493 is about 854.2895015108.

The spelling of 623469493 in words is "six hundred twenty-three million, four hundred sixty-nine thousand, four hundred ninety-three".