97438499 has 2 divisors, whose sum is σ = 97438500. Its totient is φ = 97438498.

The previous prime is 97438457. The next prime is 97438507. The reversal of 97438499 is 99483479.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (99483479) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97438499 is a prime.

It is a super-2 number, since 2×97438499² = 18988522174746002, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 97438499.

It is not a weakly prime, because it can be changed into another prime (97438409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48719249 + 48719250.

It is an arithmetic number, because the mean of its divisors is an integer number (48719250).

Almost surely, 2^97438499 is an apocalyptic number.

97438499 is a deficient number, since it is larger than the sum of its proper divisors (1).

97438499 is an equidigital number, since it uses as much as digits as its factorization.

97438499 is an odious number, because the sum of its binary digits is odd.

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

The square root of 97438499 is about 9871.0941136229. The cubic root of 97438499 is about 460.1614099597.

The spelling of 97438499 in words is "ninety-seven million, four hundred thirty-eight thousand, four hundred ninety-nine".