897051011 has 2 divisors, whose sum is σ = 897051012. Its totient is φ = 897051010.

The previous prime is 897050981. The next prime is 897051017. The reversal of 897051011 is 110150798.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 897051011 - 2¹⁰ = 897049987 is a prime.

It is a super-2 number, since 2×897051011² = 1609401032672244242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (897051017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 448525505 + 448525506.

It is an arithmetic number, because the mean of its divisors is an integer number (448525506).

Almost surely, 2^897051011 is an apocalyptic number.

897051011 is a deficient number, since it is larger than the sum of its proper divisors (1).

897051011 is an equidigital number, since it uses as much as digits as its factorization.

897051011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 32.

The square root of 897051011 is about 29950.8098554947. The cubic root of 897051011 is about 964.4337057053.

The spelling of 897051011 in words is "eight hundred ninety-seven million, fifty-one thousand, eleven".