798990001 has 16 divisors (see below), whose sum is σ = 850752000. Its totient is φ = 749116800.

The previous prime is 798989981. The next prime is 798990007. The reversal of 798990001 is 100099897.

It is a cyclic number.

It is not a de Polignac number, because 798990001 - 2¹⁹ = 798465713 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 798990001.

It is not an unprimeable number, because it can be changed into a prime (798990007) 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, 187270 + ... + 191488.

It is an arithmetic number, because the mean of its divisors is an integer number (53172000).

Almost surely, 2^798990001 is an apocalyptic number.

It is an amenable number.

798990001 is a deficient number, since it is larger than the sum of its proper divisors (51761999).

798990001 is a wasteful number, since it uses less digits than its factorization.

798990001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4440.

The product of its (nonzero) digits is 40824, while the sum is 43.

The square root of 798990001 is about 28266.4111800561. The cubic root of 798990001 is about 927.9269355284.

The spelling of 798990001 in words is "seven hundred ninety-eight million, nine hundred ninety thousand, one".