197094690 has 48 divisors (see below), whose sum is σ = 551868408. Its totient is φ = 48515328.

The previous prime is 197094673. The next prime is 197094691. The reversal of 197094690 is 96490791.

It can be written as a sum of positive squares in 4 ways, for example, as 91642329 + 105452361 = 9573^2 + 10269^2 .

It is a super-2 number, since 2×197094690² = 77692633652392200, which contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (197094691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 83059 + ... + 85398.

Almost surely, 2^197094690 is an apocalyptic number.

197094690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

197094690 is an abundant number, since it is smaller than the sum of its proper divisors (354773718).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

197094690 is a wasteful number, since it uses less digits than its factorization.

197094690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168483 (or 168480 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 45.

The square root of 197094690 is about 14039.0416339578. The cubic root of 197094690 is about 581.9579981734.

The spelling of 197094690 in words is "one hundred ninety-seven million, ninety-four thousand, six hundred ninety".