817268001 has 12 divisors (see below), whose sum is σ = 1197759696. Its totient is φ = 495313720.

The previous prime is 817267963. The next prime is 817268009. The reversal of 817268001 is 100862718.

It is a happy number.

It is not a de Polignac number, because 817268001 - 2¹³ = 817259809 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (817268009) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1125351 + ... + 1126076.

It is an arithmetic number, because the mean of its divisors is an integer number (99813308).

Almost surely, 2^817268001 is an apocalyptic number.

It is an amenable number.

817268001 is a deficient number, since it is larger than the sum of its proper divisors (380491695).

817268001 is a wasteful number, since it uses less digits than its factorization.

817268001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2251452 (or 2251441 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 33.

The square root of 817268001 is about 28587.8995555812. The cubic root of 817268001 is about 934.9495243801.

The spelling of 817268001 in words is "eight hundred seventeen million, two hundred sixty-eight thousand, one".