1198796291 has 32 divisors (see below), whose sum is σ = 1521676800. Its totient is φ = 917326080.

The previous prime is 1198796273. The next prime is 1198796311. The reversal of 1198796291 is 1926978911.

It is not a de Polignac number, because 1198796291 - 2¹⁸ = 1198534147 is a prime.

It is a super-2 number, since 2×1198796291² = 2874225094630713362, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1198796251) 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, 2354945 + ... + 2355453.

It is an arithmetic number, because the mean of its divisors is an integer number (47552400).

Almost surely, 2^1198796291 is an apocalyptic number.

1198796291 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1198796291 is a deficient number, since it is larger than the sum of its proper divisors (322880509).

1198796291 is a wasteful number, since it uses less digits than its factorization.

1198796291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1019.

The product of its digits is 489888, while the sum is 53.

The square root of 1198796291 is about 34623.6377493758. The cubic root of 1198796291 is about 1062.3031359556.

The spelling of 1198796291 in words is "one billion, one hundred ninety-eight million, seven hundred ninety-six thousand, two hundred ninety-one".