97349220 has 144 divisors (see below), whose sum is σ = 310722048. Its totient is φ = 24641280.

The previous prime is 97349171. The next prime is 97349227. The reversal of 97349220 is 2294379.

97349220 is a `hidden beast` number, since 97 + 349 + 220 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (97349227) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 312865 + ... + 313175.

It is an arithmetic number, because the mean of its divisors is an integer number (2157792).

Almost surely, 2^97349220 is an apocalyptic number.

97349220 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 97349220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155361024).

97349220 is an abundant number, since it is smaller than the sum of its proper divisors (213372828).

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

97349220 is a wasteful number, since it uses less digits than its factorization.

97349220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410 (or 405 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 97349220 is about 9866.5708328679. The cubic root of 97349220 is about 460.0208245141.

The spelling of 97349220 in words is "ninety-seven million, three hundred forty-nine thousand, two hundred twenty".