1283797946 has 16 divisors (see below), whose sum is σ = 2010960000. Its totient is φ = 613520688.

The previous prime is 1283797939. The next prime is 1283797951. The reversal of 1283797946 is 6497973821.

It is a super-3 number, since 3×1283797946³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1283797891 and 1283797900.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54380 + ... + 74328.

It is an arithmetic number, because the mean of its divisors is an integer number (125685000).

Almost surely, 2^1283797946 is an apocalyptic number.

1283797946 is a deficient number, since it is larger than the sum of its proper divisors (727162054).

1283797946 is a wasteful number, since it uses less digits than its factorization.

1283797946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21373.

The product of its digits is 4572288, while the sum is 56.

The square root of 1283797946 is about 35830.1262347762. The cubic root of 1283797946 is about 1086.8398624707.

The spelling of 1283797946 in words is "one billion, two hundred eighty-three million, seven hundred ninety-seven thousand, nine hundred forty-six".