97867392 has 128 divisors (see below), whose sum is σ = 310210560. Its totient is φ = 26729472.

The previous prime is 97867361. The next prime is 97867397. The reversal of 97867392 is 29376879.

It is a tau number, because it is divible by the number of its divisors (128).

It is not an unprimeable number, because it can be changed into a prime (97867397) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61033 + ... + 62615.

It is an arithmetic number, because the mean of its divisors is an integer number (2423520).

Almost surely, 2^97867392 is an apocalyptic number.

97867392 is a gapful number since it is divisible by the number (92) 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 97867392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155105280).

97867392 is an abundant number, since it is smaller than the sum of its proper divisors (212343168).

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

97867392 is a wasteful number, since it uses less digits than its factorization.

97867392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1630 (or 1618 counting only the distinct ones).

The product of its digits is 1143072, while the sum is 51.

The square root of 97867392 is about 9892.7949539046. The cubic root of 97867392 is about 460.8355827075.

The spelling of 97867392 in words is "ninety-seven million, eight hundred sixty-seven thousand, three hundred ninety-two".