197790593 has 64 divisors (see below), whose sum is σ = 283336704. Its totient is φ = 134164800.

The previous prime is 197790587. The next prime is 197790611. The reversal of 197790593 is 395097791.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-197790593 is a prime.

It is a super-2 number, since 2×197790593² = 78242237358583298, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (197790533) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2785748 + ... + 2785818.

It is an arithmetic number, because the mean of its divisors is an integer number (4427136).

Almost surely, 2^197790593 is an apocalyptic number.

197790593 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

197790593 is a deficient number, since it is larger than the sum of its proper divisors (85546111).

197790593 is a wasteful number, since it uses less digits than its factorization.

197790593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147 (or 125 counting only the distinct ones).

The product of its (nonzero) digits is 535815, while the sum is 50.

The square root of 197790593 is about 14063.8043572854. The cubic root of 197790593 is about 582.6421204548.

The spelling of 197790593 in words is "one hundred ninety-seven million, seven hundred ninety thousand, five hundred ninety-three".