987133000897 has 4 divisors (see below), whose sum is σ = 989265038080. Its totient is φ = 985000963716.

The previous prime is 987133000813. The next prime is 987133000939. The reversal of 987133000897 is 798000331789.

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: 798000331789 = 6961 ⋅114638749.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-987133000897 is a prime.

It is a super-2 number, since 2×987133000897² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (987133000097) 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, 1066017897 + ... + 1066018822.

It is an arithmetic number, because the mean of its divisors is an integer number (247316259520).

Almost surely, 2^987133000897 is an apocalyptic number.

987133000897 is the 531073-rd centered heptagonal number.

It is an amenable number.

987133000897 is a deficient number, since it is larger than the sum of its proper divisors (2132037183).

987133000897 is a wasteful number, since it uses less digits than its factorization.

987133000897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2132037182.

The product of its (nonzero) digits is 2286144, while the sum is 55.

The spelling of 987133000897 in words is "nine hundred eighty-seven billion, one hundred thirty-three million, eight hundred ninety-seven", and thus it is an aban number.