623361601 has 2 divisors, whose sum is σ = 623361602. Its totient is φ = 623361600.

The previous prime is 623361589. The next prime is 623361619. The reversal of 623361601 is 106163326.

623361601 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 534719376 + 88642225 = 23124^2 + 9415^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-623361601 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 623361601.

It is not a weakly prime, because it can be changed into another prime (623361001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311680800 + 311680801.

It is an arithmetic number, because the mean of its divisors is an integer number (311680801).

Almost surely, 2^623361601 is an apocalyptic number.

It is an amenable number.

623361601 is a deficient number, since it is larger than the sum of its proper divisors (1).

623361601 is an equidigital number, since it uses as much as digits as its factorization.

623361601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 623361601 is about 24967.2105169961. The cubic root of 623361601 is about 854.2402201259.

The spelling of 623361601 in words is "six hundred twenty-three million, three hundred sixty-one thousand, six hundred one".