97291019 has 24 divisors (see below), whose sum is σ = 117587808. Its totient is φ = 80196480.

The previous prime is 97291013. The next prime is 97291031. The reversal of 97291019 is 91019279.

It is a de Polignac number, because none of the positive numbers 2^k-97291019 is a prime.

It is a super-2 number, since 2×97291019² = 18931084756116722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97291013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 186479 + ... + 186999.

It is an arithmetic number, because the mean of its divisors is an integer number (4899492).

Almost surely, 2^97291019 is an apocalyptic number.

97291019 is a deficient number, since it is larger than the sum of its proper divisors (20296789).

97291019 is a wasteful number, since it uses less digits than its factorization.

97291019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675 (or 668 counting only the distinct ones).

The product of its (nonzero) digits is 10206, while the sum is 38.

The square root of 97291019 is about 9863.6209882578. The cubic root of 97291019 is about 459.9291305440.

The spelling of 97291019 in words is "ninety-seven million, two hundred ninety-one thousand, nineteen".