97299540 has 144 divisors (see below), whose sum is σ = 325573248. Its totient is φ = 23369472.

The previous prime is 97299523. The next prime is 97299547. The reversal of 97299540 is 4599279.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97299547) 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 47 ways as a sum of consecutive naturals, for example, 100137 + ... + 101103.

Almost surely, 2^97299540 is an apocalyptic number.

97299540 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 97299540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162786624).

97299540 is an abundant number, since it is smaller than the sum of its proper divisors (228273708).

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

97299540 is a wasteful number, since it uses less digits than its factorization.

97299540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1038 (or 1033 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 45.

The square root of 97299540 is about 9864.0529195661. The cubic root of 97299540 is about 459.9425574144.

The spelling of 97299540 in words is "ninety-seven million, two hundred ninety-nine thousand, five hundred forty".