197790801 has 16 divisors (see below), whose sum is σ = 300714624. Its totient is φ = 114557184.

The previous prime is 197790787. The next prime is 197790821. The reversal of 197790801 is 108097791.

It is a happy number.

It is not a de Polignac number, because 197790801 - 2⁶ = 197790737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (197790821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 148501 + ... + 149826.

It is an arithmetic number, because the mean of its divisors is an integer number (18794664).

Almost surely, 2^197790801 is an apocalyptic number.

It is an amenable number.

197790801 is a deficient number, since it is larger than the sum of its proper divisors (102923823).

197790801 is a wasteful number, since it uses less digits than its factorization.

197790801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298360.

The product of its (nonzero) digits is 31752, while the sum is 42.

The square root of 197790801 is about 14063.8117521531. The cubic root of 197790801 is about 582.6423246936.

The spelling of 197790801 in words is "one hundred ninety-seven million, seven hundred ninety thousand, eight hundred one".