97081000 has 32 divisors (see below), whose sum is σ = 227171880. Its totient is φ = 38832000.

The previous prime is 97080983. The next prime is 97081003. The reversal of 97081000 is 18079.

It can be written as a sum of positive squares in 4 ways, for example, as 53494596 + 43586404 = 7314^2 + 6602^2 .

It is a super-2 number, since 2×97081000² = 18849441122000000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (97081003) 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 7 ways as a sum of consecutive naturals, for example, 47541 + ... + 49540.

Almost surely, 2^97081000 is an apocalyptic number.

It is an amenable number.

97081000 is an abundant number, since it is smaller than the sum of its proper divisors (130090880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

97081000 is a wasteful number, since it uses less digits than its factorization.

97081000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97102 (or 97088 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 25.

The square root of 97081000 is about 9852.9690956584. The cubic root of 97081000 is about 459.5979473741.

Adding to 97081000 its reverse (18079), we get a palindrome (97099079).

The spelling of 97081000 in words is "ninety-seven million, eighty-one thousand".