1197036890 has 32 divisors (see below), whose sum is σ = 2514875904. Its totient is φ = 401679360.

The previous prime is 1197036889. The next prime is 1197036931. The reversal of 1197036890 is 986307911.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 178631 + ... + 185210.

It is an arithmetic number, because the mean of its divisors is an integer number (78589872).

Almost surely, 2^1197036890 is an apocalyptic number.

1197036890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1197036890 is an abundant number, since it is smaller than the sum of its proper divisors (1317839014).

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

1197036890 is a wasteful number, since it uses less digits than its factorization.

1197036890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363902.

The product of its (nonzero) digits is 81648, while the sum is 44.

The square root of 1197036890 is about 34598.2209080178. The cubic root of 1197036890 is about 1061.7831887641.

The spelling of 1197036890 in words is "one billion, one hundred ninety-seven million, thirty-six thousand, eight hundred ninety".