1197690 has 64 divisors (see below), whose sum is σ = 3217536. Its totient is φ = 283392.

The previous prime is 1197649. The next prime is 1197697. The reversal of 1197690 is 967911.

It is a super-2 number, since 2×1197690² = 2868922672200, which contains 22 as substring.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (1197697) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14389 + ... + 14471.

It is an arithmetic number, because the mean of its divisors is an integer number (50274).

2^1197690 is an apocalyptic number.

1197690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1197690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1608768).

1197690 is an abundant number, since it is smaller than the sum of its proper divisors (2019846).

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

1197690 is a wasteful number, since it uses less digits than its factorization.

1197690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143.

The product of its (nonzero) digits is 3402, while the sum is 33.

The square root of 1197690 is about 1094.3902411846. The cubic root of 1197690 is about 106.1976258597.

The spelling of 1197690 in words is "one million, one hundred ninety-seven thousand, six hundred ninety".