97821016 has 8 divisors (see below), whose sum is σ = 183414420. Its totient is φ = 48910504.

The previous prime is 97820981. The next prime is 97821023. The reversal of 97821016 is 61012879.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6113806 + ... + 6113821.

Almost surely, 2^97821016 is an apocalyptic number.

It is an amenable number.

97821016 is a deficient number, since it is larger than the sum of its proper divisors (85593404).

97821016 is a wasteful number, since it uses less digits than its factorization.

97821016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12227633 (or 12227629 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 34.

The square root of 97821016 is about 9890.4507480701. The cubic root of 97821016 is about 460.7627798150.

The spelling of 97821016 in words is "ninety-seven million, eight hundred twenty-one thousand, sixteen".