1047061785 has 64 divisors (see below), whose sum is σ = 2198661120. Its totient is φ = 412231680.

The previous prime is 1047061781. The next prime is 1047061793. The reversal of 1047061785 is 5871607401.

It is not a de Polignac number, because 1047061785 - 2² = 1047061781 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1047061781) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1912 + ... + 45801.

It is an arithmetic number, because the mean of its divisors is an integer number (34354080).

Almost surely, 2^1047061785 is an apocalyptic number.

1047061785 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1047061785 is an abundant number, since it is smaller than the sum of its proper divisors (1151599335).

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

1047061785 is a wasteful number, since it uses less digits than its factorization.

1047061785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47758.

The product of its (nonzero) digits is 47040, while the sum is 39.

The square root of 1047061785 is about 32358.3340887630. The cubic root of 1047061785 is about 1015.4474104764.

It can be divided in two parts, 104706 and 1785, that added together give a triangular number (106491 = T₄₆₁).

The spelling of 1047061785 in words is "one billion, forty-seven million, sixty-one thousand, seven hundred eighty-five".