623611012 has 12 divisors (see below), whose sum is σ = 1128951180. Its totient is φ = 301053536.

The previous prime is 623611003. The next prime is 623611013. The reversal of 623611012 is 210116326.

It can be written as a sum of positive squares in 2 ways, for example, as 284461956 + 339149056 = 16866^2 + 18416^2 .

It is not an unprimeable number, because it can be changed into a prime (623611013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2687863 + ... + 2688094.

It is an arithmetic number, because the mean of its divisors is an integer number (94079265).

Almost surely, 2^623611012 is an apocalyptic number.

It is an amenable number.

623611012 is a deficient number, since it is larger than the sum of its proper divisors (505340168).

623611012 is a wasteful number, since it uses less digits than its factorization.

623611012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5375990 (or 5375988 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 623611012 is about 24972.2047885244. The cubic root of 623611012 is about 854.3541339433.

Adding to 623611012 its reverse (210116326), we get a palindrome (833727338).

The spelling of 623611012 in words is "six hundred twenty-three million, six hundred eleven thousand, twelve".