624969 has 16 divisors (see below), whose sum is σ = 940800. Its totient is φ = 409968.

The previous prime is 624961. The next prime is 624973. The reversal of 624969 is 969426.

It is not a de Polignac number, because 624969 - 2³ = 624961 is a prime.

It is a super-2 number, since 2×624969² = 781172501922, which contains 22 as substring.

It is a Curzon number.

624969 is a lucky number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 624969.

It is not an unprimeable number, because it can be changed into a prime (624961) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1987 + ... + 2279.

It is an arithmetic number, because the mean of its divisors is an integer number (58800).

2⁶²⁴⁹⁶⁹ is an apocalyptic number.

It is an amenable number.

624969 is a deficient number, since it is larger than the sum of its proper divisors (315831).

624969 is a wasteful number, since it uses less digits than its factorization.

624969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381 (or 375 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 624969 is about 790.5498086775. The cubic root of 624969 is about 85.4973837303.

The spelling of 624969 in words is "six hundred twenty-four thousand, nine hundred sixty-nine".