897403205 has 8 divisors (see below), whose sum is σ = 1078567704. Its totient is φ = 716800000.

The previous prime is 897403201. The next prime is 897403219. The reversal of 897403205 is 502304798.

It can be written as a sum of positive squares in 4 ways, for example, as 130279396 + 767123809 = 11414^2 + 27697^2 .

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

It is not a de Polignac number, because 897403205 - 2² = 897403201 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (897403201) 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, 136796 + ... + 143205.

It is an arithmetic number, because the mean of its divisors is an integer number (134820963).

Almost surely, 2^897403205 is an apocalyptic number.

It is an amenable number.

897403205 is a deficient number, since it is larger than the sum of its proper divisors (181164499).

897403205 is a wasteful number, since it uses less digits than its factorization.

897403205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280647.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 897403205 is about 29956.6888190267. The cubic root of 897403205 is about 964.5599056343.

The spelling of 897403205 in words is "eight hundred ninety-seven million, four hundred three thousand, two hundred five".