97126819 has 2 divisors, whose sum is σ = 97126820. Its totient is φ = 97126818.

The previous prime is 97126801. The next prime is 97126847. The reversal of 97126819 is 91862179.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 97126819 - 2⁷ = 97126691 is a prime.

It is a super-2 number, since 2×97126819² = 18867237938117522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (97126859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48563409 + 48563410.

It is an arithmetic number, because the mean of its divisors is an integer number (48563410).

Almost surely, 2^97126819 is an apocalyptic number.

97126819 is a deficient number, since it is larger than the sum of its proper divisors (1).

97126819 is an equidigital number, since it uses as much as digits as its factorization.

97126819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54432, while the sum is 43.

The square root of 97126819 is about 9855.2939580715. The cubic root of 97126819 is about 459.6702409787.

The spelling of 97126819 in words is "ninety-seven million, one hundred twenty-six thousand, eight hundred nineteen".