97438447 has 2 divisors, whose sum is σ = 97438448. Its totient is φ = 97438446.

The previous prime is 97438409. The next prime is 97438457. The reversal of 97438447 is 74483479.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97438447 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 97438397 and 97438406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97438457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48719223 + 48719224.

It is an arithmetic number, because the mean of its divisors is an integer number (48719224).

Almost surely, 2^97438447 is an apocalyptic number.

97438447 is a deficient number, since it is larger than the sum of its proper divisors (1).

97438447 is an equidigital number, since it uses as much as digits as its factorization.

97438447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 677376, while the sum is 46.

The square root of 97438447 is about 9871.0914796693. The cubic root of 97438447 is about 460.1613281016.

The spelling of 97438447 in words is "ninety-seven million, four hundred thirty-eight thousand, four hundred forty-seven".