897150901 has 4 divisors (see below), whose sum is σ = 907960032. Its totient is φ = 886341772.

The previous prime is 897150847. The next prime is 897150923. The reversal of 897150901 is 109051798.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 109051798 = 2 ⋅54525899.

It is a cyclic number.

It is not a de Polignac number, because 897150901 - 2⁹ = 897150389 is a prime.

It is a super-2 number, since 2×897150901² = 1609759478330223602, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (897151901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5404441 + ... + 5404606.

It is an arithmetic number, because the mean of its divisors is an integer number (226990008).

Almost surely, 2^897150901 is an apocalyptic number.

It is an amenable number.

897150901 is a deficient number, since it is larger than the sum of its proper divisors (10809131).

897150901 is a wasteful number, since it uses less digits than its factorization.

897150901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10809130.

The product of its (nonzero) digits is 22680, while the sum is 40.

The square root of 897150901 is about 29952.4773766712. The cubic root of 897150901 is about 964.4695021487.

The spelling of 897150901 in words is "eight hundred ninety-seven million, one hundred fifty thousand, nine hundred one".