97943240 has 16 divisors (see below), whose sum is σ = 220372380. Its totient is φ = 39177280.

The previous prime is 97943227. The next prime is 97943249. The reversal of 97943240 is 4234979.

It can be written as a sum of positive squares in 2 ways, for example, as 97337956 + 605284 = 9866^2 + 778^2 .

It is a junction number, because it is equal to n+sod(n) for n = 97943194 and 97943203.

It is not an unprimeable number, because it can be changed into a prime (97943249) 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, 1224251 + ... + 1224330.

Almost surely, 2^97943240 is an apocalyptic number.

It is an amenable number.

97943240 is an abundant number, since it is smaller than the sum of its proper divisors (122429140).

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

97943240 is a wasteful number, since it uses less digits than its factorization.

97943240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2448592 (or 2448588 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 97943240 is about 9896.6277084672. The cubic root of 97943240 is about 460.9546023684.

The spelling of 97943240 in words is "ninety-seven million, nine hundred forty-three thousand, two hundred forty".