97740216 has 128 divisors (see below), whose sum is σ = 313344000. Its totient is φ = 27651456.

The previous prime is 97740173. The next prime is 97740217. The reversal of 97740216 is 61204779.

It is a happy number.

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 a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97740217) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 191770 + ... + 192278.

It is an arithmetic number, because the mean of its divisors is an integer number (2448000).

Almost surely, 2^97740216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 97740216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156672000).

97740216 is an abundant number, since it is smaller than the sum of its proper divisors (215603784).

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

97740216 is a wasteful number, since it uses less digits than its factorization.

97740216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658 (or 648 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 97740216 is about 9886.3651561127. The cubic root of 97740216 is about 460.6358817674.

The spelling of 97740216 in words is "ninety-seven million, seven hundred forty thousand, two hundred sixteen".