97904347 has 2 divisors, whose sum is σ = 97904348. Its totient is φ = 97904346.

The previous prime is 97904327. The next prime is 97904357. The reversal of 97904347 is 74340979.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (74340979) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97904347 is a prime.

It is a super-2 number, since 2×97904347² = 19170522322992818, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (97904327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48952173 + 48952174.

It is an arithmetic number, because the mean of its divisors is an integer number (48952174).

Almost surely, 2^97904347 is an apocalyptic number.

97904347 is a deficient number, since it is larger than the sum of its proper divisors (1).

97904347 is an equidigital number, since it uses as much as digits as its factorization.

97904347 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 190512, while the sum is 43.

The square root of 97904347 is about 9894.6625510929. The cubic root of 97904347 is about 460.8935796750.

The spelling of 97904347 in words is "ninety-seven million, nine hundred four thousand, three hundred forty-seven".