1047899441 has 4 divisors (see below), whose sum is σ = 1047982884. Its totient is φ = 1047816000.

The previous prime is 1047899423. The next prime is 1047899467. The reversal of 1047899441 is 1449987401.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1032658225 + 15241216 = 32135^2 + 3904^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1047899441 is a prime.

It is a super-2 number, since 2×1047899441² = 2196186476896224962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1047899491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18620 + ... + 49421.

It is an arithmetic number, because the mean of its divisors is an integer number (261995721).

Almost surely, 2^1047899441 is an apocalyptic number.

It is an amenable number.

1047899441 is a deficient number, since it is larger than the sum of its proper divisors (83443).

1047899441 is an equidigital number, since it uses as much as digits as its factorization.

1047899441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83442.

The product of its (nonzero) digits is 290304, while the sum is 47.

The square root of 1047899441 is about 32371.2749362765. The cubic root of 1047899441 is about 1015.7181263984.

The spelling of 1047899441 in words is "one billion, forty-seven million, eight hundred ninety-nine thousand, four hundred forty-one".