1047537643 has 4 divisors (see below), whose sum is σ = 1049157360. Its totient is φ = 1045917928.

The previous prime is 1047537641. The next prime is 1047537649. The reversal of 1047537643 is 3467357401.

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 1047537643 - 2¹ = 1047537641 is a prime.

It is a super-2 number, since 2×1047537643² = 2194670227003990898, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1047537596 and 1047537605.

It is not an unprimeable number, because it can be changed into a prime (1047537641) 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, 808888 + ... + 810181.

It is an arithmetic number, because the mean of its divisors is an integer number (262289340).

Almost surely, 2^1047537643 is an apocalyptic number.

1047537643 is a deficient number, since it is larger than the sum of its proper divisors (1619717).

1047537643 is an equidigital number, since it uses as much as digits as its factorization.

1047537643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1619716.

The product of its (nonzero) digits is 211680, while the sum is 40.

The square root of 1047537643 is about 32365.6861969587. The cubic root of 1047537643 is about 1015.6012172520.

The spelling of 1047537643 in words is "one billion, forty-seven million, five hundred thirty-seven thousand, six hundred forty-three".