97468991 has 4 divisors (see below), whose sum is σ = 100613184. Its totient is φ = 94324800.

The previous prime is 97468981. The next prime is 97468997. The reversal of 97468991 is 19986479.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19986479 = 1543 ⋅12953.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97468991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97468997) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1572050 + ... + 1572111.

It is an arithmetic number, because the mean of its divisors is an integer number (25153296).

Almost surely, 2^97468991 is an apocalyptic number.

97468991 is a deficient number, since it is larger than the sum of its proper divisors (3144193).

97468991 is a wasteful number, since it uses less digits than its factorization.

97468991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3144192.

The product of its digits is 979776, while the sum is 53.

The square root of 97468991 is about 9872.6385024471. The cubic root of 97468991 is about 460.2094052883.

The spelling of 97468991 in words is "ninety-seven million, four hundred sixty-eight thousand, nine hundred ninety-one".