997030801 has 8 divisors (see below), whose sum is σ = 1075132520. Its totient is φ = 919130112.

The previous prime is 997030799. The next prime is 997030831. The reversal of 997030801 is 108030799.

It can be written as a sum of positive squares in 4 ways, for example, as 152547201 + 844483600 = 12351^2 + 29060^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 997030801 - 2¹ = 997030799 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (997030831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39870 + ... + 59863.

It is an arithmetic number, because the mean of its divisors is an integer number (134391565).

Almost surely, 2^997030801 is an apocalyptic number.

It is an amenable number.

997030801 is a deficient number, since it is larger than the sum of its proper divisors (78101719).

997030801 is a wasteful number, since it uses less digits than its factorization.

997030801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100515.

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 997030801 is about 31575.7945426556. The cubic root of 997030801 is about 999.0092858095.

The spelling of 997030801 in words is "nine hundred ninety-seven million, thirty thousand, eight hundred one".