97564340 has 12 divisors (see below), whose sum is σ = 204885156. Its totient is φ = 39025728.

The previous prime is 97564333. The next prime is 97564349. The reversal of 97564340 is 4346579.

It can be written as a sum of positive squares in 2 ways, for example, as 50751376 + 46812964 = 7124^2 + 6842^2 .

It is a junction number, because it is equal to n+sod(n) for n = 97564294 and 97564303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97564349) 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, 2439089 + ... + 2439128.

It is an arithmetic number, because the mean of its divisors is an integer number (17073763).

Almost surely, 2^97564340 is an apocalyptic number.

It is an amenable number.

97564340 is an abundant number, since it is smaller than the sum of its proper divisors (107320816).

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

97564340 is a wasteful number, since it uses less digits than its factorization.

97564340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4878226 (or 4878224 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 97564340 is about 9877.4662743033. The cubic root of 97564340 is about 460.3594229340.

The spelling of 97564340 in words is "ninety-seven million, five hundred sixty-four thousand, three hundred forty".