97209450 has 192 divisors, whose sum is σ = 299980800. Its totient is φ = 22982400.

The previous prime is 97209433. The next prime is 97209461. The reversal of 97209450 is 5490279.

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 Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 508855 + ... + 509045.

It is an arithmetic number, because the mean of its divisors is an integer number (1562400).

Almost surely, 2^97209450 is an apocalyptic number.

97209450 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 97209450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149990400).

97209450 is an abundant number, since it is smaller than the sum of its proper divisors (202771350).

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

97209450 is a wasteful number, since it uses less digits than its factorization.

97209450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254 (or 243 counting only the distinct ones).

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

The square root of 97209450 is about 9859.4852806828. The cubic root of 97209450 is about 459.8005594145.

The spelling of 97209450 in words is "ninety-seven million, two hundred nine thousand, four hundred fifty".