97844939 has 2 divisors, whose sum is σ = 97844940. Its totient is φ = 97844938.

The previous prime is 97844881. The next prime is 97844963. The reversal of 97844939 is 93944879.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 97844939 - 2⁸ = 97844683 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (97844969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48922469 + 48922470.

It is an arithmetic number, because the mean of its divisors is an integer number (48922470).

Almost surely, 2^97844939 is an apocalyptic number.

97844939 is a deficient number, since it is larger than the sum of its proper divisors (1).

97844939 is an equidigital number, since it uses as much as digits as its factorization.

97844939 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1959552, while the sum is 53.

The square root of 97844939 is about 9891.6600730110. The cubic root of 97844939 is about 460.8003379662.

The spelling of 97844939 in words is "ninety-seven million, eight hundred forty-four thousand, nine hundred thirty-nine".