897621075 has 48 divisors (see below), whose sum is σ = 1775823840. Its totient is φ = 441901440.

The previous prime is 897621071. The next prime is 897621107. The reversal of 897621075 is 570126798.

It is not a de Polignac number, because 897621075 - 2² = 897621071 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 897621075.

It is not an unprimeable number, because it can be changed into a prime (897621071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 42372 + ... + 59921.

It is an arithmetic number, because the mean of its divisors is an integer number (36996330).

Almost surely, 2^897621075 is an apocalyptic number.

897621075 is a deficient number, since it is larger than the sum of its proper divisors (878202765).

897621075 is a wasteful number, since it uses less digits than its factorization.

897621075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102325 (or 102314 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 45.

The square root of 897621075 is about 29960.3250149260. The cubic root of 897621075 is about 964.6379573808.

The spelling of 897621075 in words is "eight hundred ninety-seven million, six hundred twenty-one thousand, seventy-five".