623417397 has 8 divisors (see below), whose sum is σ = 850554144. Its totient is φ = 405946128.

The previous prime is 623417371. The next prime is 623417401. The reversal of 623417397 is 793714326.

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

It is not a de Polignac number, because 623417397 - 2¹⁰ = 623416373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623413397) 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, 2416218 + ... + 2416475.

It is an arithmetic number, because the mean of its divisors is an integer number (106319268).

Almost surely, 2^623417397 is an apocalyptic number.

It is an amenable number.

623417397 is a deficient number, since it is larger than the sum of its proper divisors (227136747).

623417397 is a wasteful number, since it uses less digits than its factorization.

623417397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4832739.

The product of its digits is 190512, while the sum is 42.

The square root of 623417397 is about 24968.3278775332. The cubic root of 623417397 is about 854.2657065452.

The spelling of 623417397 in words is "six hundred twenty-three million, four hundred seventeen thousand, three hundred ninety-seven".