97378019 has 2 divisors, whose sum is σ = 97378020. Its totient is φ = 97378018.

The previous prime is 97378003. The next prime is 97378033. The reversal of 97378019 is 91087379.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 97378019 - 2⁴ = 97378003 is a prime.

It is a super-2 number, since 2×97378019² = 18964957168728722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (97378049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48689009 + 48689010.

It is an arithmetic number, because the mean of its divisors is an integer number (48689010).

Almost surely, 2^97378019 is an apocalyptic number.

97378019 is a deficient number, since it is larger than the sum of its proper divisors (1).

97378019 is an equidigital number, since it uses as much as digits as its factorization.

97378019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 95256, while the sum is 44.

The square root of 97378019 is about 9868.0301479069. The cubic root of 97378019 is about 460.0661829790.

The spelling of 97378019 in words is "ninety-seven million, three hundred seventy-eight thousand, nineteen".