1284887674 has 16 divisors (see below), whose sum is σ = 2210510016. Its totient is φ = 548704800.

The previous prime is 1284887671. The next prime is 1284887677. The reversal of 1284887674 is 4767884821.

It is an interprime number because it is at equal distance from previous prime (1284887671) and next prime (1284887677).

It is not an unprimeable number, because it can be changed into a prime (1284887671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159372 + ... + 167239.

It is an arithmetic number, because the mean of its divisors is an integer number (138156876).

Almost surely, 2^1284887674 is an apocalyptic number.

1284887674 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1284887674 is a deficient number, since it is larger than the sum of its proper divisors (925622342).

1284887674 is a wasteful number, since it uses less digits than its factorization.

1284887674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326901.

The product of its digits is 4816896, while the sum is 55.

The square root of 1284887674 is about 35845.3298771263. The cubic root of 1284887674 is about 1087.1472901008.

The spelling of 1284887674 in words is "one billion, two hundred eighty-four million, eight hundred eighty-seven thousand, six hundred seventy-four".