97549020 has 144 divisors (see below), whose sum is σ = 309062208. Its totient is φ = 24883200.

The previous prime is 97548989. The next prime is 97549037. The reversal of 97549020 is 2094579.

97549020 is a `hidden beast` number, since 97 + 549 + 0 + 20 = 666.

It is a super-2 number, since 2×97549020² = 19031622605920800, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 645945 + ... + 646095.

Almost surely, 2^97549020 is an apocalyptic number.

97549020 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 97549020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154531104).

97549020 is an abundant number, since it is smaller than the sum of its proper divisors (211513188).

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

97549020 is a wasteful number, since it uses less digits than its factorization.

97549020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300 (or 295 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 97549020 is about 9876.6907413364. The cubic root of 97549020 is about 460.3353257569.

The spelling of 97549020 in words is "ninety-seven million, five hundred forty-nine thousand, twenty".