1047120782 has 4 divisors (see below), whose sum is σ = 1570681176. Its totient is φ = 523560390.

The previous prime is 1047120773. The next prime is 1047120787. The reversal of 1047120782 is 2870217401.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2870217401 = 2767 ⋅1037303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1047120787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261780194 + ... + 261780197.

It is an arithmetic number, because the mean of its divisors is an integer number (392670294).

Almost surely, 2^1047120782 is an apocalyptic number.

1047120782 is a deficient number, since it is larger than the sum of its proper divisors (523560394).

1047120782 is an equidigital number, since it uses as much as digits as its factorization.

1047120782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523560393.

The product of its (nonzero) digits is 6272, while the sum is 32.

The square root of 1047120782 is about 32359.2456957822. The cubic root of 1047120782 is about 1015.4664820112.

The spelling of 1047120782 in words is "one billion, forty-seven million, one hundred twenty thousand, seven hundred eighty-two".