623825687 has 8 divisors (see below), whose sum is σ = 626104080. Its totient is φ = 621552640.

The previous prime is 623825669. The next prime is 623825707. The reversal of 623825687 is 786528326.

It is a happy number.

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 623825687 - 2⁶ = 623825623 is a prime.

It is a super-2 number, since 2×623825687² = 778316975522043938, which contains 22 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 (623825627) 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, 494864 + ... + 496122.

It is an arithmetic number, because the mean of its divisors is an integer number (78263010).

Almost surely, 2^623825687 is an apocalyptic number.

623825687 is a deficient number, since it is larger than the sum of its proper divisors (2278393).

623825687 is a wasteful number, since it uses less digits than its factorization.

623825687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2673.

The product of its digits is 967680, while the sum is 47.

The square root of 623825687 is about 24976.5026975355. The cubic root of 623825687 is about 854.4521584214.

The spelling of 623825687 in words is "six hundred twenty-three million, eight hundred twenty-five thousand, six hundred eighty-seven".