1098752939 has 4 divisors (see below), whose sum is σ = 1099383624. Its totient is φ = 1098122256.

The previous prime is 1098752917. The next prime is 1098752947. The reversal of 1098752939 is 9392578901.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1098752939 - 2¹² = 1098748843 is a prime.

It is a super-2 number, since 2×1098752939² = 2414516041922275442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1098752989) 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 3 ways as a sum of consecutive naturals, for example, 312722 + ... + 316215.

It is an arithmetic number, because the mean of its divisors is an integer number (274845906).

Almost surely, 2^1098752939 is an apocalyptic number.

1098752939 is a deficient number, since it is larger than the sum of its proper divisors (630685).

1098752939 is an equidigital number, since it uses as much as digits as its factorization.

1098752939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630684.

The product of its (nonzero) digits is 1224720, while the sum is 53.

The square root of 1098752939 is about 33147.4424201928. The cubic root of 1098752939 is about 1031.8898721070.

The spelling of 1098752939 in words is "one billion, ninety-eight million, seven hundred fifty-two thousand, nine hundred thirty-nine".