1061993835 has 192 divisors, whose sum is σ = 2339850240. Its totient is φ = 451630080.

The previous prime is 1061993831. The next prime is 1061993837. The reversal of 1061993835 is 5383991601.

It is not a de Polignac number, because 1061993835 - 2² = 1061993831 is a prime.

It is a super-2 number, since 2×1061993835² = 2255661811156014450, which contains 22 as substring.

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 (1061993831) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 11932471 + ... + 11932559.

It is an arithmetic number, because the mean of its divisors is an integer number (12186720).

Almost surely, 2^1061993835 is an apocalyptic number.

1061993835 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1061993835 is an abundant number, since it is smaller than the sum of its proper divisors (1277856405).

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

1061993835 is an equidigital number, since it uses as much as digits as its factorization.

1061993835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200 (or 188 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 45.

The square root of 1061993835 is about 32588.2468844214. The cubic root of 1061993835 is about 1020.2517112351.

The spelling of 1061993835 in words is "one billion, sixty-one million, nine hundred ninety-three thousand, eight hundred thirty-five".