97683521 has 12 divisors (see below), whose sum is σ = 107366832. Its totient is φ = 88813296.

The previous prime is 97683517. The next prime is 97683533. The reversal of 97683521 is 12538679.

It is not a de Polignac number, because 97683521 - 2² = 97683517 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97683221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7010 + ... + 15636.

It is an arithmetic number, because the mean of its divisors is an integer number (8947236).

Almost surely, 2^97683521 is an apocalyptic number.

It is an amenable number.

97683521 is a deficient number, since it is larger than the sum of its proper divisors (9683311).

97683521 is a wasteful number, since it uses less digits than its factorization.

97683521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8720 (or 8707 counting only the distinct ones).

The product of its digits is 90720, while the sum is 41.

The square root of 97683521 is about 9883.4974072946. The cubic root of 97683521 is about 460.5467993556.

The spelling of 97683521 in words is "ninety-seven million, six hundred eighty-three thousand, five hundred twenty-one".