1623201 has 8 divisors (see below), whose sum is σ = 2170560. Its totient is φ = 1078992.

The previous prime is 1623197. The next prime is 1623203. The reversal of 1623201 is 1023261.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1623201 - 2² = 1623197 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1623203) 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, 996 + ... + 2058.

It is an arithmetic number, because the mean of its divisors is an integer number (271320).

2^1623201 is an apocalyptic number.

It is an amenable number.

1623201 is a deficient number, since it is larger than the sum of its proper divisors (547359).

1623201 is a wasteful number, since it uses less digits than its factorization.

1623201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1575.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1623201 is about 1274.0490571403. The cubic root of 1623201 is about 117.5233332264.

Adding to 1623201 its reverse (1023261), we get a palindrome (2646462).

The spelling of 1623201 in words is "one million, six hundred twenty-three thousand, two hundred one".