1623326601 has 16 divisors (see below), whose sum is σ = 2341989440. Its totient is φ = 994230720.

The previous prime is 1623326599. The next prime is 1623326647. The reversal of 1623326601 is 1066233261.

It is not a de Polignac number, because 1623326601 - 2¹ = 1623326599 is a prime.

It is a super-3 number, since 3×1623326601³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1623326671) 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, 90406 + ... + 106863.

It is an arithmetic number, because the mean of its divisors is an integer number (146374340).

Almost surely, 2^1623326601 is an apocalyptic number.

It is an amenable number.

1623326601 is a deficient number, since it is larger than the sum of its proper divisors (718662839).

1623326601 is a wasteful number, since it uses less digits than its factorization.

1623326601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197496.

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 1623326601 is about 40290.5274351180. The cubic root of 1623326601 is about 1175.2636441141.

Adding to 1623326601 its reverse (1066233261), we get a palindrome (2689559862).

The spelling of 1623326601 in words is "one billion, six hundred twenty-three million, three hundred twenty-six thousand, six hundred one".