97538649 has 16 divisors (see below), whose sum is σ = 140234304. Its totient is φ = 59947200.

The previous prime is 97538633. The next prime is 97538659. The reversal of 97538649 is 94683579.

It is not a de Polignac number, because 97538649 - 2⁴ = 97538633 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (97538659) 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, 52954 + ... + 54764.

It is an arithmetic number, because the mean of its divisors is an integer number (8764644).

Almost surely, 2^97538649 is an apocalyptic number.

It is an amenable number.

97538649 is a deficient number, since it is larger than the sum of its proper divisors (42695655).

97538649 is a wasteful number, since it uses less digits than its factorization.

97538649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3208.

The product of its digits is 1632960, while the sum is 51.

The square root of 97538649 is about 9876.1657033486. The cubic root of 97538649 is about 460.3190115425.

The spelling of 97538649 in words is "ninety-seven million, five hundred thirty-eight thousand, six hundred forty-nine".