97691841 has 24 divisors (see below), whose sum is σ = 153083840. Its totient is φ = 59675616.

The previous prime is 97691813. The next prime is 97691849. The reversal of 97691841 is 14819679.

It is a happy number.

It is not a de Polignac number, because 97691841 - 2¹¹ = 97689793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (97691849) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13260 + ... + 19266.

Almost surely, 2^97691841 is an apocalyptic number.

It is an amenable number.

97691841 is a deficient number, since it is larger than the sum of its proper divisors (55391999).

97691841 is a wasteful number, since it uses less digits than its factorization.

97691841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6165 (or 6162 counting only the distinct ones).

The product of its digits is 108864, while the sum is 45.

The square root of 97691841 is about 9883.9183019691. The cubic root of 97691841 is about 460.5598743709.

The spelling of 97691841 in words is "ninety-seven million, six hundred ninety-one thousand, eight hundred forty-one".