97223040 has 96 divisors (see below), whose sum is σ = 335743200. Its totient is φ = 25924608.

The previous prime is 97223023. The next prime is 97223083. The reversal of 97223040 is 4032279.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 97222995 and 97223013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2680 + ... + 14199.

It is an arithmetic number, because the mean of its divisors is an integer number (3497325).

Almost surely, 2^97223040 is an apocalyptic number.

97223040 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 97223040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167871600).

97223040 is an abundant number, since it is smaller than the sum of its proper divisors (238520160).

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

97223040 is a wasteful number, since it uses less digits than its factorization.

97223040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16904 (or 16889 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 97223040 is about 9860.1744406476. The cubic root of 97223040 is about 459.8219853096.

The spelling of 97223040 in words is "ninety-seven million, two hundred twenty-three thousand, forty".