97289784 has 24 divisors (see below), whose sum is σ = 263493360. Its totient is φ = 32429904.

The previous prime is 97289767. The next prime is 97289789. The reversal of 97289784 is 48798279.

It is a tau number, because it is divible by the number of its divisors (24).

It is a nialpdrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 97289784.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97289789) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 675552 + ... + 675695.

It is an arithmetic number, because the mean of its divisors is an integer number (10978890).

Almost surely, 2^97289784 is an apocalyptic number.

It is an amenable number.

97289784 is an abundant number, since it is smaller than the sum of its proper divisors (166203576).

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

97289784 is a wasteful number, since it uses less digits than its factorization.

97289784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1351259 (or 1351252 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 54.

The square root of 97289784 is about 9863.5583842749. The cubic root of 97289784 is about 459.9271844415.

The spelling of 97289784 in words is "ninety-seven million, two hundred eighty-nine thousand, seven hundred eighty-four".